So far as a HO model.... I would love nothing more! Adam and I were only talking about that yesterday. I daresay though it would be some years off in the future, as although you and I have affection for these beasts, I cannot imagine too many people wishing to have one running around on their layouts (hell, I can't imagine too many railways having them running around on their railway), so it would be a love project once we reach a position where we're not counting on covering costs.
You mean one like this! Its an S scale model by Alyn Models. Runs beautifully and pulls like a bull
It is pretty much the fault of QR that the ASG ended up having so many problems as this war time locomotive designed and built in 12 months, was compromised in many areas to suit QR requirements. QR didnt want them and so they went out of their way to ensure they failed theirs.
The flangeless drivers, a feature used by Beyer Peacock on some of their 4-8-2 garratts, was employed by the designers to help reduce the rigid wheelbase to 9ft to suit suit Queensland conditions. The failure of the leading flangeless drivers was due to the bogies not having sufficient lateral stiffness and side control which led to rapid wear on the leading flanged drivers axleboxes causing the front flangeless driver to derail.
The WAGR had no problems with the F class 4-8-0 freight locomotives which also had flangeless leading drivers and 3rd driver to enable travel through sharper curvatures. Hence a proven track record in use and likely why it was chosen by Mills to enable the ASG to suit QR conditions. Fs seen here below
Once Tassie and others sorted out these design compromises they had good use out of their ASG locomotives. So really we can thank the Qld's for the ASG being a not so desirable locomotive.