You will love the addition of a top link. The most important thing is to get the right length for your tractor. I would recommend that you go take some measurements - specifically what is your mid-point pin to pin measurement and then what min length and max length can you take without binding. For me this midpoint was ~22" and I could easily do an 18" (min) and a 26" (max). As such I purchased the cylinder from
THESE guys.
For the lines, I purchased
THIS kit from Tractor Supply. Only took a few minutes to install everything.