I talked with DJM on the phone today. I told them what I wanted and they directed me to the universal Chevy kit.
The guy on the phone was like, Son of a B this, and F-bomb that, if you do this, you'll F your transmission, blah blah blah. Talk about customer service! Lol. Never had a customer service quite like it. Anyways, I may try again tomorrow and maybe I can talk to a different rep. who may be able to direct me in the right direction.
One helpful piece of advice I received from this guy was that when you flip the rear axle, you should move it back a little to avoid damaging the transmission. Good advice. AND after talking to my buddy who is an expert on this stuff, he said pinion angle isn't all that important unless I'm off by more the 4-5 degrees. Shouldn't be too hard. In response to the comment above, I will update you on the flip and how it goes.