is this possible for a CRX?

Getting my CRX on the 7th hopefully, already has the b18A motor swap, exhast, intake all that stuff but i want to make it Vtec......how would i go about making the motor a Vtec.........how would I do it and how much am i looking at?? thanks guys!!

VTEC head, ECU and a little wiring... like $750 + wiring