Looks like a nice pickup, mind me asking how much you paid for it?
And I wouldn't go LS/V, I'd just build it as a clean DD. (Just my opinion)
Anyways, I'd start with some visual mods: bumper lights, one piece headlights, sidemarkers, maybe a lip.
- White out the tail lights if they aren't already.
http://www.clubintegra.com/board/showthread.php?t=38610
- Intake, header and exhaust.
- Either a good shock/spring setup or coilovers. I'm not too sure on what the best way of lowering a DA would be, but I wouldn't go for anything too crazy.
- Eventually better wheels, probably something gold with a polished lip, or blades. But wheels are probably a non-issue for now.
Other than those few things, I can't think of much else I could suggest that I wouldn't do to my own car.