67 barracuda notchback restoration

Well i may still adjust the new quarter a bit closer, however i am going to take the car off the dolleys, and set it on jackstands. 2 at the front, 2 at the back. I jacked it up on the framerails at the far end just fwd of the rear bumper, or should i just temp hang the suspension under it and drop it on its wheels for the quarter panel swap. I have a 318 and 4 speed in it for mock up that will add weight to settle it.