miles
I think it is about 90 miles. If you bring a dinky with you, you can stop at Ozark and row to shore and pick up fuel in town. Next stop is clarksville where a train bridge blocks sailboats from reaching marina. Again you would have to anchore out and row (or motor) dinky to marina for fuel.
Best bet is to carry a few extra cans of fuel on deck. Russelville marina at lake Dardanelle has fuel and will sell you however much you want. I often buy 1 gal. at a time and they don't mind.
Comming down river you will be with current and usually have better winds so fuel will not be as bad as going back up river.
Sent you a pm about a book you might find interesting
Mel22