I'm pretty sure you can get what you want with existing VWMs, though I can't think of exactly the right syntax offhand. I think Smurth had some themes that used the same mouse button for both dragging windows and switching desktops.

Also, could you email me (rabidcow@rcow.net) with more details about the bugs? I don't have problems and my total desktop res. is 4352x1264, so I doubt size by itself is a problem.