Well... no Kevin. Its not cost effective in my opinion for any swap to change ecu from another Subaru. Especially when the car is OBDI and engine is OBDII. I mean just think about it, you will need to somehow wire:
Tach (analog to Digital)
Speedo, intrument panel,
This will take you at least 100 hours the first time you do it, just like the guys who do the wrx swaps. 100hrs*($15/hr or more for most of us hopefully) + cost of all parts.
That's at least $2000. And guess what? still no control over what engine does and a crappy oversensive knock sensor, etc.
For the poor folks what I did is the only option I believe is available.
I mean engine = $500, piggyback = $100, dyno time = $80. And that's it. Depending on quality of stuff you buy you can do entire swap in less than $1000.
A standalone like Link 2 would be my choice for a turbo swap, I never understood the point of 100+hrs of wiring crappy OBDII ecu on your car.