Looking to get a truck for work and a trailer to bring my boat home occasionally to do some work on it and want to make sure I get enough to do the job. Is the displacement of my boat the figure I should use for it's weight? Plus any gear and the trailer itself and all? And do I need to get a trailer specifically for a boat? Or can I take any trailer heavy duty enough to haul it and modify it? We're talking maybe 2-3 times a year, max.