Really, @Highlander356? In all of Australia (some 25,000,000 people, roughly half of them males, so that's 12½ MILLION GUYS!) there's no one who still knows aircooled engines? I'll say it again- tap into the local VW aircooled scene- find a VW club, go to an event or 2, talk to people and you'll find out who locally is good with these engines.
They're out there- you'll just have to put in a wee bit of work finding them. Gordon even gave you a club list. Have you figured out how much an engine will cost and how long it will take to ship from the USA? What happens if the engine has to go back to the builder- even CB Perf. has the occasional call back.