1. I was going to lift the frame up to the body, a reverse of how I removed it, and was going to remove the engine and transmission to reduce weight. I do not have the benefit of a lift. I do suppose I can arrange proper jacks in proper places and with some one on each jack lower the body onto the frame. Set up correctly, should have better control lowering than lifting. What have I got myself into?
2. Body mounts. Here are suggestions: used hocky pucks, used skate wheels, sliced discs from HF mallets, but after a closer look at the removed mounts, these mounts are quite involved and are not all alike. The center mounts, 3 each side, are key, they hold the body proper.
This is a suburban so the long roof body has much more leverage on the frame, than a coupe for example. The Suburban is a unique body to frame, to road balance, etc., so needs these special mounts, see pictures in previous post. So I will order a set, poor foundation after all that I've done, appears to be foolhardy.
Ergo, I will meticulously assemble the chassis and drive train then lower the body onto the frame. Do wish me well.