Agree that you have the HP to spin it. In my experience, weight won't be a show stopper but may be somewhat of a concern. I'd really want to stay away from needing the FEL for weight on the front. Never had a Woods, but I don't think there is anything built with higher quality. I always removed the loader for mowing except when using a bush hog. That was for balance and feeling my way through thick brush that hid concrete blocks etc.
My ford 1210 for example is happy with a 5' Caroni RFM (with a couple suitcase weights on the front). It would not tolerate a 5' LandPride that was normally used on a Kubota B7500. The suitcase weights didn't keep the front under control and it struggled on any uphill grade.
The B7500/LandPride 5' RFM combo was the limit. In hot weather, uphill and tall grass the hydro fluid got quite hot (affected the feeling of the steering). Plenty of weight without loader or suitcase weights.
L3200 handled a 6' LandPride just fine, and the current L4240 hardly knows the 7-1/2' Caroni is back there.