you have to peice the whole kit together yourself, so It's going to be somewhat difficult.
ecu= p75, which is obd1 ls ecu, and then get a fuel controller to fine tune from there
the b20 and b18b heads are identical, so all the manifolds can be switched, as well as electronics.
You have to get integra axles
there is a lot that you need to know still. don't start buying anything until you think you have figured it all out