sorry I haven't gotten back to post some of the info you asked for...I rarely get on the net lately...

on cams:
Chrysler, Mitsu "low compression engines" and Hyundai Sonata on AllDataPro and Chiltons Bibles:
valve opens BTDC 19o
valve closes ATDC 59o
overlap 39o
duration 258o

on Distributor:
bodys are interchangeable between models BUT the internal LED optical Module must match the truck's ECU.

on manifold gaskets the intake gaskets at the head are the same , the gasket between the plenum and top of manifold is different so you get a different part number.

Yes, keep you project update posted here on WIRE. I think finding hyundai motors is a good option for a cheaper and more avaiable engine, from a newer vehicle that hasn't been bogged down and worn out in a heavy truck.

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.