ECU compatible with AT

Hello guys.

I am looking for the best cost effective ECU, which can control 2-3 solenoids Automatic Transmission (A341 at the moment, but plan to switch to TH400) of my JZX100 Toyota Cresta. I've got 2JZ-GTE inside with Borg Warner S366SX turbo on it. Not necessarily plug in stuff, can be for custom wiring harness.

The problem I see so far that most of the well known brands cannot offer such ECU in price range below 2k$.

I would be grateful if someone can suggest me a good ECU for this purpose.