Not a project Z-25, but this one while no trailer with it and with the 454/Alpha drive train, has been a fresh water Donzi all it's life. Located in Michigan. I don't know what all would be involved in changing the Alpha to a TRS setup, but that in itself it seems would be a very big project? If not what you want, if someone is looking for what appears to be a well cared for Z-25, This one seems to fit the bill.

http://www.boattrader.com/listing/19...zi-Z-25-612661