When I had a test drive of a ZS, it looked to be the same dials as the 45. Havn't looked at a ZR to see if they match the 25, but I have my doubts that they would spend extra money on a different cluster for the ZR when they have one for the 25. It would be worth while taking a closer look to check.
As far as developing stuff goes, sure, if anyone is keen to help with templates then we can sort something out. Made more recent developments of the backlit dials we do, which are now becoming very popular, and with plenty of logo options and such like, I'm sure we could come up with something rather nice