The measurements I gave are the best I can do. When I say approximate I mean within 1/2” and +/- 2°. If you’re really going to cut it up you’ll have to do your own measurements with the hoop and wheel well feet in place
I have full size spares on all of mine, up to 31”, I added a ratchet strap to supplement the cable. On one of them I have a spare tire support hanger from an ‘86 MJ.