idk dude, I think you can prolly pull another 15 seconds out of that car with suspension, tune, aero, and some weight drop. But you are talking about doing the whole gambit. The guys that race in Porsche GT 2 have to buy a late model GT3 and then dump another 100K into it just to keep up. Guess it depends on what you really have as a goal. If you want to W2W race hen spec that way, if you want to set records in TA, then you gotta find a series and spec that you think you can be competitive and have fun in. There's a price tag either way