I was wondering if a charter company would actually be interested in doing something like that. Pros and cons from their perspective. Due to time-constraints on turn-around of a boat, maybe some things would not get fixed. Depends on schedule. Unlikely a charter company would want to get themselves into the position to have to point that kinda thing out "we didn't fix X because we didn't have time." Essentially it puts the charterer in the position of QCing the charter company's work, or what work they didn't do.

It would be interesting to hear from a charter company on this idea.