Looks like a very interesting rifle! Congratulations on your purchase!
I’d say you would definitely want a ramrod stop of some sort.
Another concern, and a potential safety issue, would be possible cap fragmentation. I don’t see a cup on that hammer, and the nipple is just “out there.” Please wear eye protection, and you may want a protective cuff of some sort on your left forearm. With no apparent cup or recess on the hammer face, it may be a challenge to devise an effective rifle-mounted flash cup for that nipple. Hopefully, the Muzzleloading Forum Braintrust can come up with viable suggestions.
I don’t mean to be a party pooper… it’s a nice rifle, but safety comes first.
Best regards,
Notchy Bob