The problem is if you read over my previous post you see I don't do onsies or twosies, I scrap and sell in bulk. Most of the board i junk out are functional so it wouldn't make sense to just trash a singe board for its shell if it wasn't for a greater cause.
Since you want just the bottom half I can look for a pcb that has a crushed in top shell and I can sell you that cheap. You just have to give me time to search.