I have to say, I don't see an issue here, you sell on an enthusiast forum because you don't want the hassle, the idiots and nit pickers of eBay, but you will always make more money by selling on eBay.

I put my engine and gearbox on here and didn't get a single bite, both sold on ebay for over £100 each, and one of those is a dealer located in Belgium.

As regards to what happens to your stuff once you've sold it - well us kit car builders are responsible for the destruction of hundreds of 'classic cars' - and when I bought mine, the guy selling asked numerous times "are you going to restore it ?" - I off course answered yes every time !!