Just an idea:
Ag Photographic sell a 8" roll of Metallic for £120. Could we pool our resources to buy and cut down a roll?
13 boxes of 25 8x10 sheets would be £9.50 per box.
Obviously we'd need someone with a large enough darkroom to cut the roll down and maybe we'd all need to supply a box & black bag. I put this in the UK forums but I suppose anyone could pitch in.