Motobins has the sidestand bushing for 8 (pounds), and the bolt for 2. I'm sure Morton's, Max, etc. have the parts too.
I used a hockey puck to build-up the foot, but ended up grinding it down to fit the contour of the center stand for clearance. Still use a piece of wood on dirt, and the same flat rock has been in a gravel lot I park at often ... even looks like someone else is using it. :)