Hi Abiella
I have an Aircooled and planning to fit headunit, speakers in the front(without cutting the door cards up) and 6x9s on the parcel shelf, i would like speaker boxes in the front like in bruce's car, but cant seem to find any, and planning to make some sort of mdf raised parcel shelf or boxes for the 6x9s, also going back to guy2yourlefts question, having a set of 4 speakers and a headunit should be fine im sure, just as long as you dont have them on for long periods at a time, otherwise you will start to lose indicaters and headlights, not sure about an amp tho.
Sam