Here are the pics, the boot build fits into the boot and can be removed easily. The sub is mounted in a sealed box 18mm MDF glued air tight and screwed. The 2 pieces on the L hand side are to hold the amp, and a cover so it cant be seen. There is an alpine 6 disc changer which I was planning to keep although this can be sold as well if anyone wants it. There would therefor be room to mount a second amp to drive the speakers in the passenger compartment if you so wish.
I am obviously not expecting to get anywhere near, but the whole install, not including the amp and sub cost me in excess of 1k
Although I think I may have paid over the odds!!