as far as turbochargers go, this is something that you want to be very thorough on, considering you can totally screw up an engine/tranny if done incorrectly. first off, im not sure of the compression ratio of a tib, but the accent is not really turbo friendly. turbo cars usually have like 8:1 or 8.5:1 comp. ratio, and i think that my accent has 10:1. this alone is unsafe if you just slap a turbo on. you HAVE to have fuel managment and spark stuff. bigger injectors is a must; you will realize very soon that the fuel delivery is not sufficient enough if you dont do anything to it. you should also get a high flow fuel pump. an msd ignition is good enough for your spark delivery.
you also have to have a controller of some sort. an S-AFC will do, or somesort of standalone will be perfect. if you dont get these, your car will run like ass and could also be dangerous to the engine.
so you should definitly spend teh extra dollars and get those cuz it will save you a lot in the long run.
as far as boost controllers go, you could just run the pressure off the intake manifold and be good for 5-7 lbs of boost. its cheap, but then again, you can get a manual boost controller off ebay for like 20 bux, so you might as well get that.
you definitly should get a BOV. of not, you risk getting compressor surge and will GREATLY reduce the life of your turbo. now since you want to run low boost, an intercooler is not really needed, but again, you should probably get it just to be safe. when your dealing with your engine life and durablilty, its better to be safe than sorry.
now since you are an auto, you really shouldnt be running high boost anyways, cuz auto tranies are not as strong as a manual tranny.
dont forget turbos are water cooled and oil cooled, so you will have to figure some way of hooking them to teh car.
in the end, a kit is probably your best bet. it has all teh stuff you need, and you dont have to worry about getting bad parts that are used.
just my .02 cents.
(i.e. i have been in the 3000gt community for a while, so i read about this stuff all the time)