We just bought a 1977 9.2c. There were no manuals, etc., onboard and the PO was absolutely no help, so it's been an adventure figuring the systems out and bringing everything back to life.
She had been neglected for several years, but after a gentle power wash to remove the Oregon State Flower covering we found her sound and dry. Amazingly, there was no water in the bilge. Good thing, because the bilge pump had been inoperational for years without power.
Following is a list of components we've dealt with and brought back to life:
Engine: 2QM20 rwc. Replaced the tach drive unit after full service
Batteries: New gr27, starting, 2 6v Trojan golf cart, house
LPG: New external hose and 10# alum. horizontal tank
Oven: 4-burner Magic Chef w/oven. Replaced oven pilot
Refrigeration: Addler Barber Danfoss cold plate. Replaced the control module
Hot water: On-demand LPG. Repaired freeze-burst in coil
She sails well and feels solid and responsive. Comfortable for two large adults and the dog.
We'd be interested in communicating with other 9.2c owners.