What's a 1878 Springfield Worth?

[carbine85]

I'm looking at a Cut-Down 1878 Trapdoor with a filled stock and added saddle ring bar.
It's in fair to good shape.
I'm really not clear on the history / conversion of these rifles.
What's a fair asking pricing for this?

 

[Art Eatman]

Don't cross-post. If no results from the other thread, request closure of it and begin again in this forum.