Your going to need,
Injectors
fuel pump
AFM (depending on which ecu)
Computer
clutch (if manual)
and of course the turbo.
I miss understood if your budget is $2,000 for the turbo or for the power goal.
If for the power goal then forget it. I don't believe you will ever get that power with second hand parts.
If it is just for turbo I would stay away from hypergear, KKR and hi flows...
You will need cams, flywheel and need to be ringing a highflows neck for prob not even that power.
I believe if it is just for turbo you would be best going for a:
HKS GTRS kit
HKS 2835 Pro S kit
Apexi AX75F82 turbo
Garrett GT3076r
These are a few turbo's to suit that power goal all which you will most likely not be able to get under $2200 bolt on. (though i could be wrong)
In my opinion, save a little more.
Enough for HKS GTRS kit. $2500ish
clutch $1000 (installed)
fuel pump $250
safc tuned $600.
You will have around 230kw on 14-15psi and then when you get other supporting mods you will be more then happy pushing out 270+.
But as said it depends if you can only afford $2000 or if you can afford $6000.