I'm moving to Manoa next year too, so I'll see you there!
My family has a bunch of Manoa grads, and my bro's a junior up there right now, and was kinda in the same situation as you as far as the truck.. Here's my .02
Tacomas are prime targets in Hawaii, I got mine broken into, and my friend's was stolen. (though, that's all on the Big Island; but I've heard of similar stories all over oahu.)
As far as shipping it over, if you're going to dorm I wouldn't recommend it. Parking at UH and Honolulu in general is expensive and it's a BITCH to find stalls. (not to mention it's really sketch to park anywhere that's not in a parking structure) Just bring a sector 9, and get a bus pass. (that's my plan) Making friends with cars is a + too.
For the safety check, Oahu has a much stricter system called Recon. (Short for reconstructed vehicle permit) There's a sticky in this regional forum with everything recon requires...
They test your tint, and it has to be at or above 35%. You can't have clear corners, and you have to get an alignment within 30 days of a lift...Things like that.
My truck wouldnt pass recon, so I'm gonna have to keep it at home
Hope this helps