The Schock website says the only 30 made in 1979 is the "30" not the 30-30. I've sent the HIN to them for confirmation.
Any further comments appreciated.
Right.. this will the the IOR influenced 30 by Shad Turner
Pretty typical of the day, smallish cockpit, esp with narrow stern, big headsails and spinnakers, possibly a handful deep downwind with spinnaker in a breeze. This just means 'pick your days'...
What/where is your intended usage?
As to the engine, it could be either.. any model number? From the 80s it could be one of the '2000' series Volvos, not their best moment, from what I've heard. Volvo parts are also known to be uber expensive as a rule.
If you're near/can see the boat if it's FWC it will have a heat exchanger and 2 water pumps, should be fairly obvious once you're there.
This is a fair amount of boat to be buying without a survey. Do you have the experience to give it a good look over and to be sure you're not buying someone else's problems?