Any BMW junkies out there? Paint code question

I was just gonna peice one togeather… gt30-35r turbo, I have a bov, front mount I have, piping, I can get injectors right off ebay as well as a manifold and oil lines and shit are easy to get as well… It’s fairly easy to peice togeather a turbo kit, they also have the Dinan software to tune, I didnt no it was so difficult. Idk, maybe I wont do it, but I dont really like superchargers that much, turbo has always been my thing.