Zunnie,
Welcome aboard, you've come to the right place as there are some front 3 pt hitch conversions on here. I did one for a front mount blower on my Massey Ferguson 399 4wd. You can see the entire process here. The only problem I've encountered is throwing the rear drive chain under heavy load. I need to modify the rear drive sprockets/chain to eliminate any possible flexing of the pto shaft, much like the reverser unit that I mounted up front with flange bearings supporting the end of the shaft If I had mounted the reverser in back the way it was designed, I wouldn't have the problem, but I didn't want to take the reverser off in the summer and had plenty of room for it in front.
Hope this helps. http://www.tractorbynet.com/forums/build-yourself/187397-max-snow-beast-finished.html