Transfer case Dilemma

[blue 72 gmc 4x4]

So I got this 72' GMC 4x4. The transfer case is out of it and I just found out that it's a later, probably 85-91' 32 spline T-case with an adapter to mate it to a sm465 around the same year. The truck was originally an automatic, probably had a th350 in it. I'm just wondering if I should sell this stuff off and find a (69-72) t-case and adapter for a th350. I personally like a stick in a 4x4 but if I ever sold the truck do you guys think an automatic would be better? Anyways here's some pics of the t-case and adapter.