There are really only two places in Hawaii that do real camera repair.
Photo Tech Camera Service Center 510 Piikoi Street Honolulu, Hawaii, 96814 808-596-8209.
Randy's Camera Repair 139 Lahainaluna Road Lahaina Hawaii 96761 808-661-8054
I don't know if either will work on a Hasselblad, but all it takes is a phone call. A jammed mirror is not brain surgery. Any competent Hasselblad repair person can get it running. Your friend posted to the group and got a lot of Stateside suggestions, many for David Odess. I don't think shipping it clear across to the East Coast for a mirror jam makes sense, but shipping it to the dozens of good techs in LA would make sense, if the HI techs listed above cannot do it.