Yeah - a full sheet set me back £780..!

I imagine I could have got it cheaper directly from the manufacturer, but they won't sell it to you unless you're an approved fabricator - ie. taken their instructional course in how to use it (cut, glue etc.)

You just need to get lucky in terms of finding off-cuts. A lot of what's out there has metallic flecks etc, so might not be suitable for the intended purpose.

Wal.