Sounds like a great idea, but it's more than I would want to spend. Have you contacted any of the dealers in the US?
http://www.beckerautosound.com/dealera.html
SW Stereo (http://www.swstereo.com/) has the 7882 for $549+$15 shipping. That would save a few bucks over getting them from the UK. Plus they might give a group discount.