I was wondering if someone could give me an opinion on something. I have a Yamaha B-2 // C-2 amp-preamp with a T-2 receiver, a TC-800GL tape player and a couple Yamaha NS-1000 Monitor speakers. Everything is in good working order. Only the speakers have a few scratches. The rest is clean. I have all manuals and original boxes. I got it all from my mom who was the original owner. What's this stuff worth. I'd like to sell it