Truly like all the features and dimensions of my 1984 O'Day 28. Very manageable for solo sailing. Interior simple and roomy. Would like to add a swim platform to the stern for future boarding convenience (mooring) and the grandkids (swimming) . Got all the required dimensions for ordering before winter storage, but forgot to "check" the structural integrity of the stern. Is the 36 year old transom solid glass (transom should be sound and not a concern), or is it cored (and needs to be checked for water intrusion)?