I'm upgrading U/W system. Both items are low mileage and very well-maintained:
Nauticam NA-D800 Housing with Vacuum Lock/Leak Detection System. In 2016, housing received full rebuild with all new O-rings by Reef Photo ($400) - routine maintenance. Housing is in outstanding condition.
Nikon D800E - low shutters, 9+ condition. Regular Nikon service.
Reefnet Subsee Magnifier +10 Lens
Reefnet Subsee Magnifier +5 Lens
Includes: spare housing O-ring, extra camera tray for camera/housing, camera battery, charger, vacuum lock pump, camera manual
Price = $3,150.00 + shipping/insurance