I used some 4x8 boards that I had used on a 66 chevelle body-off, so I used them on my 38. I have four sturdy metal shop stools as stands. Unbolted body bolts, made sure nothing else hooked up like pedals and steering shaft. I used two bottle jacks with a 2x4 on top of them and slowly jacked body up at the cowl and slipped 4x8 under cowl "feet" with one end on shop stool and the other end on another shop stoll. Then I went back to rear of body and used the two bottle jacks to lift the rear of body. My trunk floor is pretty solid so no problem with the 2x4 on the jacks spreading the force out. Once jacked high enough, I slipped another 4x8 across to the other side with the ends supported by the 2 more shop stools. I had to be careful on the rear board support as I did not want the weight of car to bend the metal at the "kick-up", so I took a 2x4 and put it on top of 4x8. this 2x4 fit between the side seams and kept them from bending. I then rolled chassis out from under body.
My car did not have fenders on the body and there was no transmission or engine to bother with. The shop stools and 4x8 made a very stable platform. I probably left something out, but it was pretty straight forward. I used the 4x8's because I had them.