Get in touch with Alan Hoover, Head of Ethnology at the Royal British Columbia Museum in Victoria, BC. I worked on a contract with many 'movers' in the archy/ethnology depts during 1990-1992 when the entire collections had to be moved for retrofit due to asbestos sprayed on the ceilings decades earlier. They had quite a system and must have, by now, published some of their insights into moving collections!