In theory that should have been possible but no-one in the UK I could find were doing steel wheels and those that do either will not or cannot narrow (only widen) or have a backlog of work the length of a streamliner. Where have all the traditional skills gone. The UK is weird like that - seems you have to drive long distances to find someone whereas in say NZ there is, for example, a radiator guy in nearly every town. Here they seem to be rare, or, more likely, are not internet types so unless you drive past them you do not know they are there.
I will take Geoff's lead up (the trad hot rod shop) or I can buy the GM Rally wheels but remain nervous of the double stud pattern on each wheel - will that pass tech - I need to email John Borkman on that one if that becomes a probability?