I don't have any information specific to the boats of the Constitution, but I can offer a few general comments.
he boats in the Revell kit (if I remember correctly; it's been a long time since I looked at one) are basically sound in terms of shape but don't have much detail. They almost certainly should have floorboards - along with keelsons, frames, gratings in the sternsheets, masts, furled sails, and all sorts of other stuff. They probably, but not necessarily, would be stowed with the rudders attached. A boat's rudder could be manipulated by either a wood tiller or a "yoke," a roughly semi-circular piece of wood attached to the top of the rudder post with two holes in it for "tiller ropes," which would be worked by the coxwain. At least one of the boats on board a good-sized ship probably would be fitted with a windlass, for handling the ship's anchors.
I recall, from more years ago than I want to think about, having a conversation with Cdr. Tyrone Martin, who was the Constitution's commanding officer at the time, in which he told me that he'd found a reference in one of the ship's logs from the War of 1812 to "the green cutter." To my knowledge there was no standardized rule for the painting of ships' boats at the time; that was a place where the captain could express his originality. I have the impression that black was the most common color, with white seen fairly frequently as well.
Effort spent on a ship model's boats is rarely wasted. The modeler usually comes to them late in the building process, and it's a temptation to get them out of the way in a hurry. But they inevitably are centers of attention on the finished product. Well-detailed boats are a sign of a really determined modeler.
Hope this helps a little.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.