Some questions. Is the trigger guard iron or brass? I can't tell from the pics on my phone. I suspect it's brass in which case you have a P58 Naval rifle.
The ramrod is incorrect, the barrel looks wrong for the stock but without closer inspection what I can see to "correct" it to ACW use would be a front & rear sight, nipple, bayonet lug, a correct Enfield ramrod & front sling swivel.
Lodgewood likely has all the parts and can do the work. If you want to do the work, again Lodgewood is likely to have all the parts as might Gunderson Militaria. Enfield parts are relatively common from a variety of vendors.
For me I look at a rifle that has already had parts swapped and I'd look for the parts to convert it to a P56 which is everything mentioned above except swapping out the brass trigger guard with an iron one, swapping out the brass nose cap with an iron one and installing a rear sling swivel. In other words essentially creating a counterfeit of a weapon it never was for more money.
For $600 you have a project. Figure at least another $200 in parts ( some quality repro) plus the cost of installing the sight & bayonet lug to return her to what she was 150 years ago. You might be able to get a complete replacement barrel from One of the NSSA vendors. I would pay to have it done right by someone the skill of Dave Stavlo at Lodgewood or Todd Watts because brazing the sights on is the work of a professional IMO and Enfield parts often as not will require hand fitting.