I quit messing with the rear end for awhile as I couldn't take the frustrations. So fall or so this past year I started back on it, ignoring the crap I had to make right and going forward with what I could in order to gain some forward progress. Got everything welded to the rear end and got that mocked and hung into place. I won't even get into what a battle that was, again a never ending fight to get the bolt holes lined up and that all will require more tweaking to be correct. So I got in enough to call it done-ish and moved forward to the front.
Now to eliminate any doubts about my car being off, I took the suggestions of everyone and started measuring my car to see how far it was off. Well to my surprise, it isn't. Not one single millimeter. Per the factory Ford chassis dimension specs found on this forum and all over the Google. Everywhere I laid a tape measure it all speced back to exactly what those diagrams said I should have. And to further prove this, I cut every bit of the old front suspension apart to install a Rod & Custom Mustang II front cross member and it fit absolutely perfectly, no adjusting or tweaking required.
I cannot and will not deny this is a well built well engineered kit. But they either have some big time problems with their jig, or the guy who built my kit built it upside down. And I believe it was the latter. Everything I look at tells me it was either built with the left on the right or the top on the bottom. Hard to explain, but looking at what I see, that's the best I can come up with. I'll throw up some pics and let you guys have a peek. I am pleased with everything for the most part, all frustrations aside.