There are some complications to consider. First, I'm skeptical that you will find the kind of gun you asked about and for sure I skeptical of finding it at an attractive price. Second, I'm not sure they can sell it to you right then and there. Third, you can't bring it home with you unless you can PROVE it is an antique (pre 1899) or you have it bought enough ahead of time to get a ATF6 and have it with you. Fourth, the gun trade is in the northwest, so you are not likely to just casually visit a maker's shop. Fifth, if you can't bring it with you, export costs may well make a mid-grade gun unattractive - check on export and shipping costs before you buy!! Last, take care that you don't buy a gun just because it is there and you are there - very careful; you are very likely to be on sensory overload and just a bit jet lagged.
But, do as much research as you can and see if a plan can be made. Post back on results - many of us are nterested!!