Thanks Mike and Bennie,
here's a little more clarity...hopefully, my family and I go camping quite often, towing our camper (a '64 airstream). about half the time, maybe more, we go to places where a boat would be great (fishing/exploring). but it has to be a car-topper. and I usually use a small outboard or trolling motor.
to me, a canoe makes more sense than hauling three small kayaks. (i have twin daughters - 10yrs - that love to fish with me.)
most recently, I ran across this design (see url) and really like the looks and size of it. Maybe reducing it to something closer to 14' and I wonder if I could car-top it (onto a suburban) with the help of one of the 'helping hand' type devices I've seen around? it is basically a big fat square stern canoe.
what do you think about just shortening this design by about 2ft... and leaving everything else as is.