If you put a wedge in it,the kickstand leg will not fold up parallel with the chainstay.

Looks like it will need a 1/2 - 1 inch spacer under the mount or the legs need to be longer with the mount so high.The angle should not be a big deal.

You could cut some aluminum pads for the bottom of the kickstand leg,but they will have to be thick,so it might make the legs bouncy in the closed position from the weight hanging out that far.

If it was mine,I would make some spacers out of something easy,like cardboard,stack them in there until you figure out how thick you need.Than make something out of aluminum or hard rubber or plexi or whatever looks good to you.

With a double kickstand,you shouldn't be having problems with the wheel wanting to turn at all,the bike should be standing level(not leaning) when on the stand,at least on reasonably level ground.