I want to switch to a turbo motor and a T-5 in my 89 but I'm not too hot about putting a j/y T-5 behind a 200hp motor.
Does anyone sell new or really good rebuilt T-5s that will bolt to a 2.3?
Does anyone sell new or really good rebuilt T-5s that will bolt to a 2.3?

To make it work behind a 2.3, you'd have to either have the input shaft machined down where it goes into the pilot bearing, or get the pilot bearing adapter from Rapido (google it, I don't know their URL). First gear will be pretty steep compared to a 4-cyl tranny, which may or may not matter to you.
This is the company I bought my transmission from yars ago give them a call they don't have any products or prices listed on thier website