I'm also not finding this map terribly re-assuring. Toyota has five dealerships in the NT, and 40 in WA. I just spent two weeks in rural QLD, NT and SA. Basically the whole time 1000-1500k from an Ineos dealer. Ineos need to sort this. At the very least they need dealers or at least service agents in Alice and somewhere like Broome.You forgot the 70 Series has a different size front and rear axle, which come back to haunt you off road. Apparently the new 4 cylinder still does not even fix that.
If Ineos want to charge for a mature product with an established service network.. they better get on with it. It's easy to be a loooong way from help.