My faithful '93K Audi 100 7-seat Avant is an insurance write-off thanks to a clown in a Range Rover. I'm considering replacing it with an A6 Avant, but would be lucky to find the right model/price with the extra seats in the boot. As my 100 is similar to the early A6 Avant, might it be possible to switch my rear seats to an A6?

Even if I couldn't tackle the job, would it be worth selling my car as scrap to someone who could do a conversion, rather than letting the insurance company have it for £50?

Any advice would be welcome, thanks.