I got a bunch of Battle System dungeon sets that I'm likely never going to use. It's:
Fantasy Dungeon Set
Mines of Minerva
Archway/Floor Tiles/Butcher's Block
It comes in a box that states Kickstarter on it, so I'm not sure if its a Kickstarter version with stretch goals inside or not. There's a 2x2 dungeon gaming mat too.
The only things that i've ever used is 2 doors and some trap tokens, so everything else is unpunched.
The total lot comes out to about £100, but I'll take £50 for them.