Front door glass removal ’66 Polara

I need to remove the passenger door glass on my 66 Polara convertible. The FSM states I have to remove the vent frame and door glass as a unit. I don't have enough hands.

Is there any way to remove just the vent frame without the window glass? I need to replace the guide shoes and weatherstrip in the front (vent) channel.
Thanks!
Author: Dsertdog