When (hopefully soonish) we sell this place, we'll be looking to take the machine with us to our new home interstate.
With any luck, and a bit of local research, we'll find a decent mech who can do what's required to get the bastard thing working the way it should have been from the start.

As regards warranty, the original selling agent did the first "repair" under warranty, and assured us that the issue had been fixed. As it happens, I no longer believe him! He has also relocated to a place a bit n=more than an hour's drive away, and I'm certainly not keen on driving there for him to "look" at it again and declare the problem cured! And I'm not sure I'd be prepared to believe him then either!

Thanks for the moral support.
John