I just looked at a picture of a Capri 18 on the net. It seems to have the same short stubby keel as my American. What I ended up doing so I could change my bunk boards and carpet and paint the bottom was to get a small bottle jack and a piece of of wood and put the jack and the wood between the trailer edge and the hull and then gently let the jack and the wood take up the holding pressure on the hull and then lowered the bunks down, pulled them off and then change boards and re carpeted. To just get it home, you wouldn't have to get this drastic, all you would have to do is just put the jack and wood under the keel and raise the boat slightly a 1/4 to 1/2" would do it and then slip some carpet in and re lower and you will be good till you get home. Make sure the piece slipped in is held in place by staples or duck tape.