Reminds me I still have a box of bits to put on flea bay, think I got rid of all the rare bits though, may have an escos quarter window seal and saff jack point covers,,, that could be this afternoons mission!
As for the prices for some parts, it's supply and demand, as said spending a grand on a few bits to finish a 500, it's going to be at least a 20k car, maybe more than double, so it's a small percentage of the cars value.