I have an offer to trade someone a guitar worth $500 for a record player, speakers, and receiver. I can't really find much info about them so wanted to get some opinions here. He values them at $300 so wants to add a little cash on top for my guitar. - Sansui FR-DR35 - Yamaha NS-A300 - Onkyo TX-8511. All of the equipment is working and he currently has it hooked up and is using it. It's all in great condition looks like and I'd get to hear it beforehand. Is this stuff worth $300?