Very large slanted car dog crate (Chessington KT9)

I have a small boot so I cut it smaller with metal cutters but it still doesn't fit! Hence it doesn't fold completely flat (see pics) new condition otherwise .....fits my 3 Frenchies in with space to lye down. I have a skip outside so if not collected asap next 2 days I will just throw it but it's new so it would be a shame! Kt9 collection.