I've talked to several Zeiss reps. The current answer is "no", they won't place a reticle in their eye piece. They had a one time but picking up bits and pieces here and there, it seems like it was pulling teeth. They also won't recommend someone as that would go contrary to their warranty.
They discontinued the Mil Reticle Eye Piece for sale in the States...
I have 2, but gave one to Clint Smith recently because he couldn't get them either after ordering a Zeiss Spotter... the only Zeiss option for a reticle now is the Spotter 60.
I've sent an email to an associate I have with ADI in Australia. Maybe he can help. Might any of you out there do like wise with any overseas contacts you have?