If someone wanted to make a bike here in Australia then maybe a Adventure Bike would be the way to go.
A simple little thing that the owner could work on out in the Simpson.
A bike with NO
Watercooling
ABS /ABN /traction control
Actually no tricky electronics would be the go.
A bike that uses rider input to do the job.
A bike where you could get the bad fuel out in a couple of minutes instead of hours.
Fit a single cable slide carb instead of a vacuum controlled thing.
A bike where you could change the headlight bulb in 5 mins instead of 1 hr.
If you left all the tricky bullshit off it I'll bet you could make it cheap as well as reliable.
Cheers
Mike