Follow-up:
Kyle was very receptive to my request and turned me over to the production manager, Mark. Due to production cycles it will take as much as two months to acquire the full set of unfinished molds I’m looking for, but I will get them.
To keep it fair for Do-It I’m purchasing 20 molds, five of each of the four sizes. I will do the machining for the pull-pins/brass bores myself, but this time on fresh blanks without the interference of the brass eye sockets.
Thanks to those who replied to help me with this, and the staff at Do-it.