Quote - thanks all for the comments,

it started off as " I will just change that bit and snow balled"

so I guess I will go and make one myself. I know waht I want it to look like so all is not lost.

Yeah, just model it yourself. At the end of the day it will be more easier, more gratifying and in the process you get to learn new skills.  It's more rewarding than re-texturing or modifying an existing mesh.

And you don't have to worry about copyright issues, since you  made the mesh yourself and can therefore easily prove it.

D'oh! Why do things that happen to stupid people keep happening to me?