A cradle of 55 galllon drums
Folks make cradles outta lumber alla time, but you need a model or template, not a big job, but lumber is expensive nowadays...A yard I was in in Kiwiland used 55 gallon drums but you need to set the yacht on her keel first the prop her with the drums and padded of course, the fill 'em with beer, or water if you're cheap-----I would strongly advise you to have a yard rent, or sell you some pad-screw stands, even these are not fool-proof and I was near a yacht that fell on its beam ends once...