X2 on making sure the trailer has brakes or at least add them once you get it. I'm doubting the crv has any type of tow/haul mode so no engine braking might be an issue coming down long hills with the extra weight. Otherwise pulling it around you should have no problem with one of those lighter...
A few months ago I picked up a 1986 Tracker TX17 with a 9.9 merc 2 stroke. The previous owner did say the boat would just barely get on plane for him when he drove it, but judging by the registration sticker on the boat it had likely sat for 2-3 years. I put fresh fuel in it and it fired first...