I used to keep my beloved Harpoon 4.6 on a trailer at Shelburne Shipyard
https://shmarinas.com/locations/safe-ha ... -shipyard/ and possibly another cheaper sailboat lot over winter. I think they let me keep my mast up. It is on a strategic peninsula that makes it pretty easy to launch and land in any wind direction without a motor, although I don't know if your width would cause a problem.
If you are tempted into the widest part of the lake, beware of fierce squalls or turbulent winds suddenly popping out of the mountains to the east and west. It is more protected to the north with serpentine coast and islands, which may have more easygoing launch options.