Some folks have been reporting success with Montana Spider Effect spray:
http://www.dickblick.com/products/montana-spider-effect-spray-color/
Others have sprayed the Krylon into another container, thinned it, and then sprayed with a spray gun.
Finding just regular black lacquer is a challenge. My experience in locating any was the same as yours (which resulted in deferring that particular project!). When I get back to it, I'd likely try the Montana stuff first.