Thinking about turbo on my/6 again...

As title says
85 d150 long bed, currently 727 which may stay
Other trans choices on hand are an 833 od or an a500.... Yes I have the 60s era /6 to sb trans adapter plate for that possibility
Currently 3.21 gear, not looking at changing much from there whether I do the turbo or not.
Daily driver/ may pull a small camper or utility trailer with a few mowers on it occasionally
Daily commute 70 miles round trip, mostly 65mph, about 4 stop signs between here and there, mostly cornfield lines, rural state 2 lane road.
Not looking for more than 6-8 psi at most. Mostly looking for wow factor at an occasional cruise night. At the beginning want to run my super 6 with nos 318 carb. Want to stay carbureted.
Thinking draw thru.
Would a turbo from a lebaron turbo coupe be enough? Not looking to race. "It's a truck"
And I want to retain factory ac
Only thing"I" can think of that might be a problem is it's a fresh engine, rebuilder grade piston 20-over, and I set the ring gaps about right in the middle of spec. Wishing I'd have opened them a bit
77 peanut head, oversized si valves, ported. Block + head shaved a combined 0.100, Aussie head gasket, CR a calculated 8.4:1.in other words CR exactly to "blueprint" specs as list d in every Chilton and Motor manual of the day