Hi Tony! Pretty good man, still at the bike shop, which is kinda sad considering I can't find tyres for myself. I'll give Peter a ring, but I'm pretty sure I tried him already. A lot of the suppliers list them in last years catalogues but they've since been axed from production.
Caps, I've tried IRC as well. It seems most manufactures are just producing 18" rears and 21" fronts now.