carbonfibersi

I am planning on doing a K20a3 swap in my 01 Civic Si (EX states) and use the motor out of an SiR (Si states). I'd prefer the motor out of the hatch instead of the base RSX because of the electric power steering but either one will do.
My question is, does anyone know if it's possible to use the head off of a RSX Type-S or R, with that cars ECU on the K20a3?
Would like to have the flow of the head, high and low cam lobes on both the intake and exhaust cams and the true VTEC engagement point of that motor.
Also, would I be able to use a thinner head gasket to raise the compression ratio up a bit? And does anyone make a thinner head gasket for the K20?
I know I could just make it easier and use the motor out of the Type-S or R but the price of these is just way too much.
Anyone with info or links to help would be appreciated.