If the shellholder fits the rim why couldn’t you use the priming punch on the press?
I was thinking that a small diameter pipe cutting tool with a dulled cutter or a bullet cannelure tool might work as another way to crimp but it looks like you have solved that problem.
The rim is quite petite and it isn't obvious to me it would survive the stress of primer seating. Open question at this point and the brass supply is limited.
