This was a helpful post. My k75 side stand gives me worries. The hockey puck under the foot idea is interesting, but not if it masks a member in the side stand or joint. That are wearing to a point of failure.
My thought on the puck is a plate with a catch for the foot that will slide out and in but not slip off the plate once captured. So, a horseshoe shaped keeper on a 4” square piece of metal plate. Someone has made one of these no doubt. Cheers.