Hal-
Maybe the 930 is diff but wanted to give you a heads up.
I had to "massage" the middle of the rear shock cross member on my 77 to get the t-body to clear it. You may want to test fit E/T before you button it up back there. I did beat it pretty well then cut the lip the beating made, beat that gash together, welded it, then sealer & paint. The tb tube is tight but fits. The rear of the car/front of the engine clearance where coolant inlets are, also needed coaxing. All is well though, you can't see any of it.
I need to do the welding you've done, (thanks for showing the way) and I'm debating the suspension, love your set-up, but maybe I'll go stock and then add it on later.
Jeff