Here i am again

I've been away for a long time because my engine (1991 gen2 3sgte) cracked near the water pump and i had to save money for the repair work.

I found an used gen2 block in good conditions, and i bought all the necessary for the resuscitation of my All Trac.

My setup is:

Gen2 head with Gen3 camshafts
Gen2 block with:
- Cometic steel head gasket (thick as the original stock)
- CP pistons (86,5mm diameter)
- Eagle rods
- ACL complete bearing set
- Stainless Steel exhaust system
- Crankshaft and flywheel balanced

I'd like to keep the original ECU. What is your opinion about?

Here there are some pics of the old and new engine:

Thank you for your help