I too have been trying to get stencils but in 1/6 scale and on this side of the pond it seems to be impossible to get a one off stencil made. None of the companies want to touch it and most requests have simply been ignored. I would make one myself but it's a large 8 and a 3 that I want doing and it's got the fine lines going through the numbers too so I have found it impossible to do it, it needs to be laser cut or something.
I could buy some from Armorpax but you have to buy the complete set at about £95 / $190 and that's just taking things too far. If I do discover anywhere that will do them at a reasonable price I will let you know.