why dont you colour code it to your car, but first add some rough texture to the wood, so it gives it a different effect to just smooth wood.
i dont think you will have as much room in your boot as you first expected, you will need to have around 3 cubic foot of enclosed space to getz the rm's working sweetly.
Glad you choose the older model rm sub than the nasty looking chrome ones.
You decided wot amp you going to be running them with.
Have you thought about upgrading your car electrics, ie battery and alternator
you thought about power caps, wiring kit and a good earthing point
Have you considered all the possibilities of air tighting the enclosures, and that to get best usage of air tightening, you will have to enclose each sub seperately
Dont forget paz, if you have any problems give me a call day or night, only for you though hunny bunch