costs depend on what you do and where you get it

i have full ofac with 15psi chip etc etc the lot for 250 posted then get the frst inlet, say a tenner usually cos 2i are same
the cps system off a 1.8 cvh, to add the cps to the pulley again say a tenner add a bit of machining say a score

then a few odds and sods

if you sell ur meterhead, old ecu (esp is chipped) and all the other bits you no longer need it dont really cost that much