Thanks for all the great replies,
the paint is spray can red oxide under coat then a coat of a cheap spray can light gray, scratched knocked and chipped in areas that would naturally receive wear,
left out side for a month or so to rust up then rubbed back with some fine steel wool to reveal some more of the red oxide, next dabbed on with a paint brush a coat of shellac in and around areas that would get a build up of grime, let the shellac dry then rubbed it back with fine steel wool soaked with methylated spirits. The gray paint must have been acrylic cause the metho dissolved that as well.
Got the Fat Franks here in Australia, went into a local bike shop and asked, the guy in the shop rang the wholesaler and found out there was some in stock and could be ordered, so got a friend with a bike shop to order them in for me, took a couple of days to get them. Ask at your LBS to check with the Schwalbe importer.
regards
Steve
btw; to help fund my next project I've listed this bike on ebay