Looking for a cottage

[Old Sarge]

The Wife and I would like to host her sister and husband for a week on the lake this summer (sometime in July up to the 3rd week of August). we would need 2 Bedrooms and a dock to accommodate a 24' bowrider. We are looking to spend up $2500 for the week. Tried VRBO et al, but it seems like most places are already rented. Anyone know of a property available or a good real estate or rental agency? Thanks for the help!