Well, just look in the Complete List I posted for you. Post #16 in the thread (VIN #057) should fit the bill?
Only 14 Mk1 ZT's and 1 Mk1 ZT-T in total were ever made in Trophy Blue (all RHD), so chances are pretty slim of others coming on the market.
That list is updated several times a day, so you just can keep looking there. It's pretty complete too.
David