Hi and welcome to the board. Have you considered building? That's what I do. Ten bucks worth of wire and a bag of drugstore organic cotton balls will keep you in coils and wicks for a year or more. Whenever your wick gunks up, break the tank down, pull the wick, dry fire the coil to burn the gunk off it, then wash it clean and rewick with another piece of cotton. For a tank recommendation, I like the Lemo 2.