papachaz - I know you will love it.
The W.R. Long kit is plug and play...as long as there is no backhoe. My LS was sold with a backhoe attached. Soooooo....mine already had adapters attached to the power beyond port and the hydraulic reservoir, and the long length of hose provided was too short. Next the quick couplers from W.R. Long were the same size as other connectors on the tractor so that was good. However...not knowing my tractor had 1/2" couplers on the 3/8" hoses caused me to order 3/8" couplers with the grapple. So it took lots of back and forth to figure out the couplers, snd get 1/2" quick couplers on the grapple hoses.
The W.R. Long kit includes a heavy mounting bracket for the valve. I had to flip that around, drill two new holes, and move a little anti-rotation tab that is bent 90 degrees. Lastly I flipped around the front bracket that attaches to the FEL cross tube up front. Otherwise the bracket mount routes the hoses in a way that interferes with the front grille guard. Both of these brackets are good and heavy, probably 1/4" plate.