Two years ago, I was able to obtain a copy of this film and also "The Bank Robbery" (1908) on VHS tape from the Oklahoma Historical Society. Cost was about $16 at the time. Note that they custom-copy these on request; they did not have a "stockpile" of them. You just tell them what movie(s) from their collection that you want a copy of, and they'll put it on the tape if it will all fit. I do not know whether the same people still work there, but the POC at that time was:
Mr. Bill Moore
Oklahoma Historical Society
2100 N. Lincoln Blvd
Oklahoma City, OK 73105
(405) 522-6307
Good luck!