... you'll most likely need to consult with both Sabriel and Doctor McCoy.

The doctor, for obvious reasons. Sizing, weight, balance I'd assume, as well as anything else that might be needed depending on the depth of capabilities it has.

Sabriel, because her Charter Magic that I can use interferes with technology. I'm sure I could simply use my left hand to make any marks to cast - since I grew accustomed to quickly switching between using the magic and using my firearm. But it would still be good to test limits along the way to make sure no problems arise later, since I'm sure that would happen at the worst time!