If it was me I'd be doing a crash course in the pfc, microtech or many others, with an exhaust sensor you can do a tune with 2 ppl while driving.
For 200kw on my rb25 i have pod, 3" turbo back, intercooler, 1bar, fuel pump/reg, and microtech. Without the microtech I had lots less kw but was running shite.
Duh slaps forehead. You can do all your mods then get a chip custom made for them so whayever you do theres some one out there who can do it for you.