well...if i were to do this for me....
i prefer at least a 2 in body lift.. regardless.
yes i would relocate the radiator forward...maxed out like my current ranger....electric puller fan.
induction would/could be tricky depending on what one wanted to do. if i wanted it for a 4x4 that would see decent wheelin...pre 85 ish head....big cam...4 bbl offy and basic fi tech efi with a dui distributor....thats about 2 g worth of goodies.....so i would really want to have a 300 to do that. and none of its necessary....a2100 2bbl will do fine but the 50 hp that is there and flatter with the money parts will be nice.
for just a meh mobile....just a stock 1 or 2bbl setup and get it awn. with a later efi engine....i would hack up the intake and log/bread box it low and leave the stock tune... you will lose mid range tq...but still be better then any 2bbl engine.
for a bug out ride.....motronic setup with a 2bbl and a mechanical fan....manual trans...
a cleaned up stock exhaust manifold for a stock cam situation....and create from there.
oil pans vary a bit. the later pan massaged is the one i have seen in the ttb chassis.
https://bangshift.com/bangshift1320/mad-science-a-drag-racer-sliced-and-diced-a-pair-of-ls-heads-stuck-them-together-and-mounted-them-on-a-ford-inline-six/