Try calling Meade in the US.
Ive never seen anyone needing the rubber feet.
Im not sure is scopeheads is still around.You may end up having to purchase a tripod.You can try Ebay and see if there is one available.If I didnt give my tripod away I would have sent you the rubber feet.Good luck.A suggestion i can make is leasure the outside diameter of the leg and see if a local store has rubber feet for say a folding chair or something like that.Ive seen them here in the states for chairs.
If you cant find any let me know ill look locally if you have measurements and see if I can locate some for you.
something like this will work