The incredible folding Cuda!
From my totally not 'back yard mechanic' scientific method, I've determined that:
1. My garage floor is pretty level.. and,
B: The 'Cuda seems to be pretty 'square' from the firewall back.
I know none of what I did is totally accurate... but I think I'm 'kinda' close. I have feelers out for a good 8 foot level for the floor, instead of using that 8' 4" steel tubing (I did check that with my drywall square, it's true) with a 3' level. Level on the back shelf shows 1/4 low on the pass side. Shows the same on top of the rockers, so I'm getting more confident the body from the firewall back is true.
Also picked up a cheap plumb bob (I know now I'll find the other two I have.. somewhere), and some cheap welding magnets.. those will be used a lot, I think :)