great advice from all. if you search posts by Jrichker, he has a little write up on the procedure with bolt sizes, etc.
parts store mounts are about 1/3 the price of poly (for 2 motor and one trans mount) - something to remember if budgeting. poly is real nice though.
also, if not using poly, i would use captured mounts from a 93 - verts had captured mounts before hardtops. by 93, ford was using the vert captured mount for all the stangs.
good luck.