I've just contacted Ukyo about this and asked if he could take over the AMC-TENDER transfer as well.
Ukyo should take his time to code the process correctly, unless you would like the risk of a screw-up? Also, he should not take over the AMC-TENDER transfer, since he does not have access to Ken's email.
Why the hurry? If anything, there has been a lot of caution involved in this whole process to make sure everything is done properly and safely. Your shares aren't going to suddenly turn into smoke.