Hello Psmocko, and welcome to the forums. We see this thread come up a lot - people looking at the B2601 or B2650 and trying to decide whether to go with one of those B's over the L2501. This is also the same decision I had to make in 2019 when I bought my tractor. In most every case I will always offer the same recommendation, and that is to go with the L2501. Ill lay out my case as to why here for you, and what led me to personally pick the L2501 in my own situation.
When comparing what to buy between two tractors, I think its incredibly helpful to just ask yourself what does each tractor give you over the other. If you are a visual learner, then take out a sheet of paper and make two big columns. L2501 on one side, B2601/B2650 on the other side. Start listing out what each tractor gives you that the other tractor doesn't give you. When you go through it in this way you tend to just rack up a big list with the L2501 and a much smaller list for the B series. It is my personal opinion that the B series is kind of niche in this way. In other words, one of the few pluses it has over the L2501 has to be one that carries massive weight for you in your particular situation.
What are notable pluses for the B series over the L? Well one of the biggest pluses for the B is that it offers a Mid Mount PTO (MM PTO). This is one of those things that for some people they simply must have, so if you are one of these people who really need MM pto then this obviously weights heavy to the B. Outside of the MM pto though, there really isnt any big clear feature that the B offers you that the L doesn't. So lesser pluses for the B is that it is indeed a little cheaper. It is a little smaller, but only marginally so, so little in fact that I just have a hard time understanding why people pick a B over and L simply on size difference. The only other positive thats worth noting for me was that the B has a set of features that I just group into "comfort features" such as a dash that is more digital and modern looking, a more flat floor board, where the L has the hump, arm rests on the seat typically, little quality of life features like this.
When you get to the L column though I feel like it just racks up too many positives. For just $2,000 more you get a tractor that is substantially heavier. With loader, bucket, and tires loaded, the L's weight gap is even bigger than a B with the same set up. Weight for you seems to be a negative in your consideration but in most all cases weight on a tractor is a plus - A heavier tractor will pull a lot more, and is a lot more stable when doing a lot of loader work. If you plan to ever use a harrow or plow or pull anything with the tractor you will want as much weight as possible. In addition to the weight, the L2501 has a substantially bigger engine, even though it is the same horse power on the spec sheet. The L2501 has a 100.47 cubic inch engine size, or 1.6L. The B2601 on the other hand has a 68.5 cubic inch engine size, or 1.1L. It is a substantial difference, so do not just look at both tractors as having the same power since they are both around 25 horsepower. The L2501 has a lot more low end torque and power. When coupled with its added weight, its just a much more formidable machine. This is why I chose the L2501. There is no way to make up for that weight and power difference, and in my case the price difference was hardly noticeable.
What it came down to for me was simply this: for basically the same money, I could get a much more capable working machine, or one that has a nicer dash and flat floor board. I had zero need or interest in a mid mount pto, so removing the single big plus of the B, made the decision in my case trivial. There was nothing at all I was going to gain by buying a B over an L, but a lot I was going to give up in ability. The L has all the extra muscle and weight, but its really not that much bigger. If the L was substantially larger in size I could understand the B being more attractive, but you really dont add a ton of girth and size by going up to an L. My L still lives comfortably in my car garage attached to my house. If for example the L was too large to fit in my garage or soemthing then the B would have another big plus, but it just isnt that much bigger whne you view them side by side. A few inches here, few inches there, and thats about it, but a lot more weight due to a larger engine, larger oil capacity, just a lot more metal on the L2501.
In your case it seems extra weight is being graded as a negative. So, you will have to consider that point a lot. In my case, I have never found my L2501 to put ruts in the yard here in florida with sandy soil. I would have to be in pure mud for such as that to happen. But, you know your terrain better than anyone here, so you have to consider this. Just know that by going with a lighter tractor, you may lessen ruts, but you also give up a lot for it. Dont make a decision that you may regret in 5 or 7 years when you wish you had more weight and power. I would try to find ways to minimize the rut issue without giving up so much in return. We all buy tractors to do hard work typically, and for a tractor that hard work is largely 2 things - the power and the weight of the machine. The L2501 is more substantial in both categories, so just dont overlook this in your decision. Be sure to let us know what you pick, and of course we love pictures!