Muzzy Parts List

Hello,
Looking to build a muzzle loader on a Savage action.
Does anyone have a parts list and place of purchase for said parts ?
I find the action and the barrels are the easy part, however trying to get an answer as to who, what, where, when, and how, on a bolt head and a breech plug, well that must be asking too much for some barrel manufacturers.
Thanks in advance.

http://www.arrowheadsporting.com/ https://www.prbullet.com/savage215.htm

Pac Nor makes a barrel with it threaded for a Savage breech plug.
So, where dos one find a 209 primer bolt head ?
Thanks again to all