I'm telling you, every ride I went on ended in me pulling into the driveway, engine on, without a care in the world except a nearly empty tank.
Once you break in the engine, and check all your nuts and bolts and ect. you are ready to go, fuel capacity being your only limiting factor.
Neither of the two I built, or the one I have now ever left me stranded, the worst time was when I ran out of gas 7 miles from home on my frame mount Western Flyer, and that ride home was nothing.