Want to buy a MS3, I think
 

2003 Miata with AC and PS I'd like to keep. Have a 2860RS, tubular manifold separated gas downpipe now. Will follow he suggested path of tuning the car n/a first, plus I still need the clutch, exhaust, injectors... AND the 818 may be ready much earlier than I was planning on... it requires both $10k and a WRX so funding options have changed a bit. Still planning to have both (a daily Miata turbo in the 200hp range and a 1800lb 300hp 818 track monster) but the turbo build may take the back seat. Still, learning about tuning and increasing the n/a performance of the Miata sounds fun.

Geez too wordy.

Who should I buy the Ms3 from? I'd like for it to start off as PnP as possible. What options/ sensors beyond the WB would you consider at this point?

Heard both Reverant and Brainiac (sp) sell the Ms3. 6 of one, half dozen of the other? Heard (well, read) great things about both.

Both are great guys who I've dealt with before and highly recommend

Braineack built my MS1, he stood by his work and was very very helpful when i was getting my car running!!