I am going all in on electric batteries with an electric motor.
No need for expensive mechanical service and repairs, especially in a country like Australia where there are limited experienced air cooled mechanics.
I hope you'll keep us updated on the process and how that works out, Highlander. I suspect (that like all experimental endeavors) it won't be as easy as you hope, but if this lights your fire (as it were)-- go for it!
It's a hobby, after all.