Just want to add that I am in no way against modifying stuff either.....
Personally, I'd take out the six and put a beastly v8 in it. Ferd, chevy, pontiac, mopar...whatever. Stick a snarly v8 in it and a ferd rear end....9"
Run two different bolt patterns....
Don't carry a spare tire....
Lighten the truck with race weight glass parts....
etc etc....
In other words, HAVE FUN and don't worry whats right or wrong.
......but whatever you do K.I.S.S. and you won't go wrong.