My shop buddies and I are working on an old Colt double-action .41 revolver (from the 1870s). We are making some headway but will need some advice at some point. (Yes, I realize this gun has a reputation for being finicky). Does anyone on the forum have experience with this pistol? (We seem to have all the parts and a reasonably clear picture of where things go/how they are supposed to work, but getting everything to come together is being a problem.)