I like your idea of a show, sort of Roman Empire version of Thor Heyerdahl’s Ra Expeditions.
Romans in Brazil During the Second or Third Century?
http://www.freerepublic.com/focus/news/1038045/posts?page=92#92
http://www.freerepublic.com/focus/bloggers/1248340/posts?page=4#4
Ancient Romans In Texas?
http://www.freerepublic.com/focus/news/665767/posts