Frankon- It seems you like to wheel and deal parts like myself.
A 400 small block we built years ago for a buddy; we used a
pioneer counter weight you simply bolted under the manual trans flywheel sourced from any of the other 9 small blocks from the 2 piece era... He drove that truck for a least 15 years after until he sold it.
http://www.northernautoparts.com/part/pp-fbp2
The trans jack I use is the cheap add on you use on your floor jack.A piece of 2x2 square tubing bolted to the jack plate with the trans mount center bolt pattern in it then bolt it directly to the t/c mount.
As you see in my thread my PTO is a dana/chealsea duel shaft on my 205 and runs at 90% of input speed. I use my nv4500 and 203 high/low for 10 power in speeds and 2 power out running one winch at a time ;If you look close I installed loops on each winch driveshaft for safety.I am able to winch and drive at the same time.
I just made a video of something me and the young lad put together for another use for the rear winch (other than pulling vehicles on the trailer behind).
http://www.youtube.com/watch?v=NMeN5...ature=youtu.be
or