I am going to sell my Mobile Fidelity Sound Lab box sets ... "The Beatles" and "The Rolling Stones". The Beatles was played 3 times and the The Stones was played once for recording to tape. They were played on a SOTA vacuum turntable, but it's been too long for me to remember the tonearm and cartridge I had at the time. Is eBay the best place to sell these? And what would you say a fair market price would be?