I bought a Starwind 22 this Spring; it was delivered by seller and launch...I have it docked; I need to inspect the swing keel and do some bottom painting this Fall after our sailing season; I need some used jacks, the swing keel draft 6'; what type of jacks would I need (size); will the jacks go outside the trailer and drive the trailer away? Sould I leave the boat on the trailer and jacked up one end at a time??? I would appreicate and imput.. I love this boat and I'm going to make everything right as possible.Tom Colley