It may only be a 10 minute job, but have checked out the costs of cranes?? and a operator?? And cost of repair if something does break, and possible lost revenue, if unit is down awaiting parts. I would think the organization gets a certain deal for the weekend then charges the participants what they feel that service is worth. Again not sure of all the spec in this situation.
I can say while in a remote area the only crane available to lift a piece of equipment we had broke, and we needed the lift to happen, closest crane capable was 400 miles away, the charge was $13000 for about 2 hrs lifting, and the rest driving back and forth. the orginal quote $18000.