Ur fenderwells depend on what size tire u are gonna run.. Mine are completely gone.. Alsong with my windsheild washer tank, and everything else that was on the fenderwell was moved. My tires are about 2 inches from the hood. Bagging the 95's are harder than mine cause u have I beams. It is still doable tho. If u want to lay frame, i think with 18's or less, u will be ok with the stock fenderwells, but again im not really familiar with the pre 97s. When i was laying frame,, i needed about 1-2 inches more room from the fenderwells. Now with the body drop its not even close. As far as the frame goes, again depends on tire size. If u are going with big drag tires,, definatly a step notch is needed.. With 18s or 17s w/ lo pros, a C should be ok.
Wish i could help more,, but i really dont know alot about the earlier models.
If you want i can shoot you some pictures of inside the engin bay. Just let me know.