No a bad old Sharps rifle.
The possibilities are endless as you have read. If it were mine I would most likley just leave it alone, sell it and buy a shooter.
If you wanted to shoot it I suggest you have a new barrel made in some easy to load and shoot caliber that you would want. Keeping the old barrel with the rifle.
You might also see if you can get a letter and see where it was sent. A western Sharps about doubles the price.
A reline can be done and if done right are invisible. The problem with one IMO is that I don't know of anyone that cuts a chamber so that an informed person can not tell it's modern and not Sharps.