I would try craigs list if you have one in the UK. I have used amaazon and ebay in the past with good results. Recently I had a problem with a dishonest buyer but if was resolved in my favor since it was obvious he was a liar. This has made me sour on selling online so I will stick with CL for now. I've sold on CL many times with no problems other than the ocassional scammer trying to fool me.