I’d avoid them, for a few reasons, which i won’t elaborate on too much.
1. Overall Quality; these Indian made muskets have a lot of quality issues, its rare that you’ll get a musket in top quality.
2. Authenticity, if you want a musket just to have a musket I think its fine, however you said you wanted a ‘Charleville’ I can assure you that any Indian made Charleville shares very little in common with an actual Charleville Musket, especially a 1766 pattern.
3. Hopefully you’re a strong fellow, because most Indian made muskets are overweight by 3-5 lbs.
4. Value; Indian made muskets do not appreciate in value, they often will sell for far less then their were purchased, so antipcate trading them away for items of lesser value.
5. Parts; All replacement parts need to be custom made and fit, you will almost never find a viable supplier of replacement parts.
6. Defarbing: making an Indian made gun authentic will cost almost as much as the gun itself, its a money pit dont do it.