brakes should be on your list too mate, no good going quick if you cant stop ;) celica 2pot's fit on relatively easy, as do levins. those parts seem about right, although you may find jap exhausts like hks etc are actually quite restrictive, a custom job will tend to free up more horses, although will be a little louder. ask anyone who's seen inside those exhausts, they'll confirm as such (they have to meet restrictions in japan for noise etc, hence the restrictive nature of them). Profec B II boost controllers are shit, they're cheap for a reason, definately look into something like a Blitz Dual-SBC or a HKS EVC. They're far superior to the shitty fucking profec, which have lots of problems, and struggle to hold even low boost. Rear ARB should definately be on your list, make such a difference to the car. With a TD04 you'll need a custom manifold and downpipe etc, so either find a kit or some sort of adaptor plate system. all depends whats available. i can sometimes source slag kits from japan, but it just depends whats available ;)