Not unsafe. They would just need a good once over. They are a piece of history, our history. The only downside to importing more is that if you flood the market with more the collectors that have them here will see their guns devalued a little.
Girl I work with is selling her bike. Here is the Craigslist ad http://zanesville.craigslist.org/mcy/3018155877.html Any questions I can get you answers pretty easily.