Friends have secured similar gigs with perqs of optional digs. (15 year plus) (sweat deal all the way around)
Unfortunately, there is not a musician nor a busker with Mudcat "membership" that I would select for such a permanent gig.
The jobs ARE there for interpretative history....but you MUST know history...scholars are watching...
Most theme parks also hire historical ...but they may require you to wear THEIR outfits....which are close... but not realy the "reel thing."
Sincerely,
Gargoyle