Honestly scrap the idea of the 3.29, its really now worth it and besides if you have tap shift you won't want to change it.
I know everybody says YOU MUST HAS 3.29's TO GET ALL THE FASTNESS OUT OF CAR OMG OMG, but lets be for realz here, you won't even care that you don't have em nor notice a HUGE difference. Crusing rpms will be lower and you'd rather have that.
The GXP chain is already stronger than the stock chain in the non V8 cars and should be as strong as the 7/8th chain and it won't stretch on you like the 7/8th does over time.
A new stock converter would be fine, I don't see a need for a higher stall converter or one built for racing.
