Damn 30mm and 35mm is pretty small.You can go with Ronnie at RD Engineering in Oxnard or James Wie with ACG in San Diego. Both are good. I would not go to SP Engineering, although they built my engine and I have not had any issues with it. I had to replace the transmission and trubos, though.
RD uses a 30mm turbo setup to get close to 1200 at the wheels. That is a very fast spooling turbo. I have the elite prime turbos on my car which are 35mm turbos.