It is very different from what you are considering in the Brooklyn kayak, but for that same weight and probably a lot less $ you can get an extremely versatile used 16-17 foot Royalex canoe--think OId Town Tripper/Penobscot or Mad River Explorer/revelation. Check your local Craigslist. I have a good amount of experience in canoes and kayaks but for almost any purpose (except maybe fishing saltwater or where you are worried about high winds) I think a "prospector" style canoe will serve you well--relatively light, more or less indestructible and suitable for everything from an hour long paddle with the kids to running rapids or week long camping trips. Just my 2 cents.