89 Dak..what would you do??

ive been suggested to do a sb swap and make it a DD sleeper kinda truck. idk really if im gonna hang onto it or just drive it till it dies and chuck it. If I keep it it will eventually need a complete overhaul, in which case I figure it might be fun to hot rod it as opposed to simply restoring whats already there

while ive got it up here, anyone know what rear this thing has? im assuming prolly a 7 1/4 or something. And how good is the aftermarket for these trucks? usual Mopar? easier maybe?