If you've picked up the Konova Slider and looking for a cheap way to mount your camera directly (no fluid head) this 3/8" to 1/4" male thread adapter is exactly what you need. The Konova only comes with a 3/8" stud and if you can't get around to a heavy duty fluid head, this could suffice temporarily. The only problem I can see though is being able to position the camera angle.

3/8" Female to 1/4" Male thread Adapter

If angle is of importance and you're not the type to do much panning while sliding, the Opteka is a pretty heavy duty ball head on the cheap. Unlike tiny ball heads, this one shouldn't have the same problems with vibration.

Opteka TH40 Magnesium Alloy Ball Head with Quick Release Plate for Tripods and Monopods