I am doing the same but on a 51 - 3100. Coilover is correct it's at least a #7 or 8 /10. I changed the in-cab tank, wiring and fuse panel, visor, wheel, king-pins, front disc, master power cyl, rear end, 292, T5, driveline, and then some.... Now comes the frame redo, paint, body, and more.
This IS a LOT of work to do.
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=010192#000003
do a search and you should find lots of info on this subject.
I had a T5 made w/ camaro guts in an S10 housing.
contact buffalo steve for engine mounts:
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=22;t=002438#000002
good luck my friend.