Took me a long time to accept it, but fires are a luxury and not entirely necessary. Once you accept that, the idea of hauling extra steel and gas to have a propane fire begins takes on new meaning.
Those 3-candle "Candelabra" units put out plenty of light to sit around and enjoy the evening. Likewise, a small, single mantle Primus lantern, backed by starlight or the moon, provides plenty of ambience.
Just my opinion. The Woodland will definitely use a bunch of gas. On high it burns 30,000 btu. According to Answers.com, a gallon of propane (4.23 lbs) can produce 91,500 BTUs, about 3 hours + on high. So a 20 lb propane bottle will run roughly 15 hours on high.
I'd rather relax around a candle or small lantern and enjoy the stars and moonlight than worry about how much propane I have left, not to mention crowding my boat with the extra weight.
Travel light, ease your burdens. Or bring some real wood and have a few selective small fires on some nights.