1976 rearend under my "New" '70 GMC

[nlped]

I searched before posting, but I'm sure I missed plenty of post on this subject...but I did try first.

I have recently bought a '70 SWB 2WD GMC that I'm planning on swapping all of the 5-lug suspension out of my '76 2wd Blazer onto. I have the frontend pretty well figured out, but I need some guidance on the rearend swap. The '70 is a trailing arm truck and the '76 Blazer is a leaf springer...I know I can get the trailing arm to rearend saddles, but my primary concern is the panhard bar and how to lower the rearend properly. The Blazer 12 bolt has already been totally gone through (Auburn posi, new gears, bearings, aftermarket axles, very nice aluminum oversized diff cover, and the McGaughy 13" brake kit) so I really have to use this one. I only see CPP that seems to have a extended & bent panhard bar that's made to clear the type of diff cover I have, but they don't actually have them in stock ???

Does anyone know of another source for the parts that I need to get this swap started??