Check with the company that already handles your auto/homeowners/life/business insurance....typically, someone you already do business with is very likely to help in your local area....
I'm with State Farm - we would likely insure it under a PAP (personal articles policy). I have yet to insure something for just six weeks, but we insure items like this all the time, typically on a yearly policy - anything from expensive cues, to wedding rings, pearls, things of that nature.
Good luck - PM with questions, I will try to help as best as I can....
Jason