heres my suggestion for you:
i say go for a 2002 GTS, yes i know about the rev limiter, but it sounds like you have the money to buy an apexi pfc to replace its stock ecu or just go to the junk yard and get the ecu and O-2 sensor from a 2001/2000 GTS and swap it.
if you plan on getting a 2003+ dont plan on getting an Apexi PowerFC, because its not compatible.
now, you can find the TRD
wing from people on here selling their's or find a replica and have a body shop work on it a bit to make it fit.
as for the Tsunami spoiler, the only place you can buy that from is from a Toyota dealer, which you are gonna have to give up your shifting-arm for.
The real TRD
/Action Package wing costs $1100 from toyota themselves, imagine how much the Tsunami spoiler is gonna cost.