Had a look at the spare parts catalogue and it hasn't got a suspension datum tool listed,didn't think it needed one myself coz the chain adjusters don't alter the ride height like on the 748/916/996 series.Seem to recall some journo's making a bit of a deal about it.still i could be wrong
Might be an idea to give Nelly(Cornerspeed) a call and see what he has to say.
PJ