One of the common forms of it, is for use as lathe and milling machine cutting-tool coolant. That would be available from machinery shops, and perhaps from Repco.
The reason I proposed that you establish an oil film with soluble oil before drying the whole machine with warm air, is that (depending on the temperature of the warm air) there may be some oxidation during the drying process if you don't. If you can't get soluble oil you can shorten the whole process by drying it without an oil film, provided that you can then get the 2 stroke oil right through it (crankshaft, bore, rings and bearings in particular) without rotating the engine. A dry, washed engine with a slight oxide film on the iron bits is very likely to scuff or even stick if you rotate it.
