This morning my patience failed and I bought a Holden Volt Type1 to 10A 3 Pin mobile charge cord at Northside Holden at St Leonards in Sydney, and plugged it in to the Type1 to Type2 adapter I had made up in China previously (trialled at the Chatswood Chargepoint charger). The Volt unit costs $385 and the Chinese adapter approximately half that. It is currently charging my tesla from a 10A socket at the front of the house at 10km/hour and the Volt box has a green light saying no faults. You might have to scout around for these Volt units but they are out there. With this combination I can do Chargepoint and 10A plugs. One may also be able to plug into 15A sockets at 10A - but not confirmed by the instruction book. I think Timpoo can get some Type1 to Type2 adapters at the moment.
Of course, this afternoon I have been just advised that the delivery of a few Tesla mobile cables to Signature holders is imminent, so my timing is perfect as usual. But for non-sig owners delivery is still an unknown, and the above combination may be a way to get around a short term problem.