Sean, Tom VanAtta owner of the Ships Store in Tucson was a dealer, probably sold as many or more than any of us in the state. Advance/Arizona Yachts was a dealer starting with the dinghies M-10, M-12 etc and then the M-17 and later the M-15 starting around 1972ish thru the selling of Montgomery Sailboats to the current owner/builder. Sails West was a dealer - unsure of the dates. I don't think we sold any M 23's (maybe 1). Gary O. M-17 #316a M-7'11