...so with everything you did on the frame are you happy with it or is there something different you would do if you did it again?
If I were to do it again, I wouldn't put an IRS in it. I'd just use a basic axle on leafs with a small C notch and an upper traction bar. The IRS requires major modification to the frame and trunk floor and inner fenders and a different fuel tank. Lots of work for questionable benefit.
When I started this project I had many many ideas for what I wanted. Probably too many. And it's taking much longer to do than hoped for. Now I hope to get it running with the body as it is and put some miles on it before I get into all the custom body mods. Then chop the top, stretch the fenders with '49 Buick tailights (from Kool52), '53 Buick headlights, shaved, nosed & decked.