Coman man

So I'm building a 86 comanche with a 97+ interior and front end, with a 6.0 and 4L65E out of a 2002 yukon Denali, and I'll be running superduty axles (D60 front, 10.50 rear with 4.10 gears and locked). I had enough in the budget for an atlas but my truck took a bit of a chunk of it, so now I'm not sure what to go with, I still need a driver drop tcase! Any ideas?