Major Help Needed

I need major major wiring help.

I bought an engine ej20 single turbo, I have already fitted it in my Leone. The pics are at http://www.photobucket.com/amksti

All that’s left is the wiring part, I can’t get the correct ECU I understand the engine I bought is an EJ20K, now I can’t find an ECU for this motor the guy who sold me the motor said the engine had its ECU later I found out the ECU he gave me was for a twin turbo legacy. I can’t find an EJ20k ECU

What I can get is a U8 22611 AA810 and a W9 22611 AA810 these ECU models are 92 - 93 have 4 Yellow Sockets and I understand my motor is a 99, now can this 93 model ECU work in a 99 model EJ20K motor?

I know there will be a power loss but I need something temporary then later I can change…

In short

1)Can this work?

2)If there is power loss, how much in terms of hp,

3)Will the turbo work?

4)Which ECU out of the 2 should I go for?

5)Can I get the wiring diagrams plz?

Thanks.