Rio 500 open speedboat with trailer

Rio 500 open speedboat from around 1975 with trailer. The engine was renovated 5 years ago with a newly renovated cylinder head and gaskets, a new starter and battery. The boat has a canopy with windows, a new stern, trim flaps and a drive/gear and engine that work fine. A trailer with plates is included, but it is not registered. The boat has not been sailed for the last 2 years and is being sold as time is not available for it.