An "original replica"? "today's market"? I don't know quite what to say to that. I think you may have overestimated it's value...... just a tad.
So, you could probably get about 150-200, depending on model, finish, and barrel length. They were never expensive, and are not collectible. Collecters collect the originals. What you have, is a shooter.
If you feel bad.... sorry to burst your bubble. I have two .32 caliber vest pocket pistols, nickel finish, spur triggers, octagon barrels, both are original and predate 1880, and I don't think I paid more than $350 for either of them. Original Cap and Ball revolvers are still pretty affordable too, $1200 - $2000. Vast numbers were sold, and hardly anybody ever throws out a gun, unlike say.... an old beatles album. So... there are alot of them out there. You see a fair number of people in cowboy action actually shooting these old guns.
If you do want a decent appraisal post a picture or two, and more details.
Specific details.
1. Blued, stainless or nickel?
2. Barrel length?
3. Octagon or round barrel?
4. Round or square back trigger guard?
5. Last, but certainly not least..... Model????