The sink/stove combo is a Dometic product and was the one thing I hated when we had the QUE. You can find a single control normal faucet online (try overstock.com) or at Lowes/HomeDepot but they are VERY expensive, and your glass top will not close with a replacement that doesn't fold down. You will need to make sure that the circumference of the base of the new faucet fits on the edge of the sink - and most are too wide. If you just need the same faucet your RV dealer should be able to get one from Dometic. I've seen this combo in several high end RVs since we had ours, so it's around.
Lance 1475 "Snoopy"
2012 GMC Sierra 3500HD 4x4 D/A
2012 Arctic Fox 30U, SUNLINES - 2006 2753 "Tweety", 2007 QUE "QUEtSE", 2364, 1660