Re: heavy riders
I'm abt 250 now and mostly run short hops on my 48cc motorized bicycle.
IMO, even if you ride very conservatively, your weight and mileage of the trip will bring quite a bit of maintenance for all the running gear.
...wheel bearings, spokes, and such...
Under the circumstances, it might be the best option, but it is what it is.
Sry, I don't see a real rosey picture here.
My goal is cheap, reliable, personal transport, below the tax collector radar. Fun counts for a lot!