If you like, I could take a crack at doing one but as I say, I've had no experience doing this kind of thing before. Still, might be an interesting challenge.

If you make another post on the forum I can PM you my contact info so we can talk more about it. I can try doing one or two tiles and see how they come out and how long they take me.

In the mean time though, if you get an offer from someone with previous form in doing mapping tiles then I'd take them up on it.