Had an old smaller great bend 651 3pt mounted on my old L2850 very handy, it was self contained meaning you hooked the hydro pump on the pto shaft, if I ever needed another 3pt bh I'd probably look for the same setup for hydraulics. Never needed a thumb I curled the bucket into the stick when I needed to hold something, I do see the advantages of a hydraulic thumb though. Being my first tractor and BH, some would probably consider my usage as abuse. It didn't have a subframe for the BH it did have a subframe for the loader running all the way back to the rear axle though. Still have and use the L2850, and sold the BH when I bought a mini x both tractor and BH are/were in good operating condition.