Well, I've now talked with the current owner about the stays of his car, he's a little disappointed but he is OK with it as it is.
I bought a set of the 2" Drake extensions to use and stock style reproduction hangers etc. One of the trim rings in the rear apron was upside down (see pictures) so when I went to turn it over the spot welds broke (no effort at all) so I bought a new pair of those too. I'll be using an Exhaust Kit to get the correct style mufflers but ordered the non-resonator type. The rest is just another day bending and fitting pipes, nothing new for me. Having the equipment helps, but honestly, building a nice job from "scratch" not always real easy. A $200 exhaust kit saves a bunch of time!