I've been trying to find exactly the same thing for my CCM rear wheel for a few years. Best I've come up with is an adjustable spanner with a load of holes drillled in the handle to reduce the weight. With the spanner/tyre lever combo thing all I've got to do is weld a U section bit to the spanner end and it'll double up (treble up?) as a prop for wheel removal as well.
Re borrowing tools to do routine maintenance, this is what we were given in a garage in Greece some years ago to remove a fork top nut: