-
I have hundreds of dance 12" from that period which I'd sell, I used to have them listed on Discogs and I was selling the less valuable ones 25 at a time on the bay. I'm going to be listing them again as I need to make space for the incoming and I've already picked out the dance ones I want to keep.
You can find whole collections for sale but you will end up with a lot of chaff. You also run into the problem that categories are quite broad and you will probably get a lot of music that you're not that into.
If I bought all the music I wanted to listen to in a month it would cost several hundreds of pounds, not £25?!