So I'm in the process of buying a 32' cruiser and am going to want a dinghy to run around in. I'm thinking 9-10', with a 5-10 hp motor. I want to be able to plane it up easily with two adults and our 50 lb dog, and I'd prefer that it still be able to plane with 3 adults even if that takes a little longer. My guess is an inflatable floor is a bad idea with a dog due to the potential for claw damage, so that means I want a slat floor? Am I going to need a RIB in order to get the performance I want, or will an inflatable keel get me there just as easily. Locally there's a 2007 9' Nordik with 5 hp Mercury and Minkota trolling motors for $1300...would that seem to fit the bill or would it likely be underpowered? I suspect that boat was a Costco special, but I'm not sure of that.