Thanks for the head ups, but on a serious note 
What is it worth selling it modded and stock? Prices people 
www.autotrader.co.ukAnd some tips from Slick
Here are a few tips.
1) go on ebay, search your car. Make a note of the prices.
2) go on autotrader, search your car. Make a note of the prices.
3) go on the for sale section, search your car. Make a note of the prices.
4) go on parkers, search your car. Make a note of the prices.
5) go to the shop, buy a magazine, search your car. Make a note of the prices.
6) go to the newsagents, pick up a local ad paper, search your car. Make a note of the prices.
You get the idea...........