I came in under the QRP program and brought lots of things but not a boat which I acquired in country. The people that handle the QRP can help you with the paperwork but beware because the customs people don't like your doing this even though it is perfectly legit. I would pay attention to any accessories and make sure that these are identified on the QRP paperwork as well (radar, seats, even engines) and would still hire a customs broker to make sure nothing goes wrong (and hopefully nothing goes missing).