TY bmc & katie, but unfortunatley I already have two 800W amps, an active crossover, four 8" 100W sub cones, two 4" 75W full-range cones and two 8" 100W mid-range cones, plus I have some peizo tweeters lying around here somewhere and a piddly amp to drive them (they dont need much power) ... it should give me around 1kW RMS
There wont be any 'head unit' as such since I'm using an MP3 playing external HDD which has an IR remote, so with the aid of one of those 'magic eye' IR extender things I'll be sticking the whole lot in the boot bolted to the underside of the wooden floor.
It's not ideal since you wont have much control over what is playing other than hitting 'next' when a tune you dont fancy comes on, but it will do until I can get a laptop & touchscreen hooked up.
I'm pretty happy with the positioning of the mid & full range speakers, but its the subs that are my problem, I was hoping to do the same as hotrodder, but the magnets on the 8" cones are just too big to fit without completely replacing that rear panel with something designed for the job.
Hey ho, I have time to come up with a solution ... the front suspension is currently in bits (albiet shiny painted ones) in my front room, so there are plenty of things to occupy me before I come to fit the sound system.