Rebuilding a wrecked trailer after a collision part 1

Bolt pattern gauge: https://amzn.to/2TD8K0j

I'm getting too old to be unloading the piles out of my truck by hand so I found a solution.... Unloading with the push of a button!
The frame and body were unharmed in the accident. The suspension took the hit and is pretty easy to replace. We have to figure out what size parts we need so we order the right stuff on the first try. I can't wait to start using it but I am worried I may not get the keep it long as people have already been stopping and making offers.