My real Baker a few years ago was 800 USD at current exchange rates. Pretty ratty in the bore and percussioned in Spain in the 19th century but a genuine, if volunteer, one. Bargains are still out there for the observant. The users must have been skinny little chaps to get down to the sights. Pedersoli will have to allow for modern substantially built old chaps in stocking. Even in it’s day troops complained about the lack of drop. Hopefully they will retain the service twist of 1:120. I doubt if many users will copy the normal service use of cartridges as opposed to loose powder and patch.
Harding covers the ammunition in his seminal study of HEIC small arms. I borrowed my copy in the UK via inter library loans and copied the Baker and Brunswick chapters which are most revealing. If your country does a similar loan service then I urge you to avail yourself of it. In the UK put in a request (£12) via your local library. All volumes are available but each is a separate request. Volume IV is the relevant one.