Golleee! Talk about pressure! How much is the bet? No sheet music that I know of, but I have got a recording by Lonnie Robertson, Lonnie's Breakdown -- Classic Fiddle Music from Missouri, Rounder 0375, 1996. That is a fiddle album that every Ozark fiddler should own, fiddler. They have it for sale at the Ozark Folk Center theater, last I knew they had dumped it in the baskets, but hadn't cut the price. There might be a listening copy at the Ozark Cultural Resource Center, and I know we have some of his old Caney Mountain vinyl albums there as well. According to the Folk Music Index, it is on Fiddle Tunes - Ozark Style, Vol. 2, Caney Mountain CLP-233, 1980, but I can't say for sure that is one in the inventory. Hey, he's even got Powell's Waltz on that album! It would be well worth your time to go down there and listen to his stuff.
Check out the info on his CD from the Rounder site