Sorry, L&E, for not being clear about this. I unfortunately don't belong to the rich and famous. Yes, the other party should pay for their own two weeks of boat hire. Nothing is settled yet at this moment in time, so when somebody is interested we can choose a boat that suits all parties.
You certainly have a point there Arthur. Probably not. A refill of the fuel tank would have to be included in the planning, as well as pump-out of the dirt tank. Whether the hire company will pay for this or not, I don't know yet. Open for negotiation I guess.