72 340 4 Speed Motor - What's it Worth

Going to look at a 72 340 4 speed motor but I have no idea what it might be worth. It's has a steel crank because it was out of a 4 speed car. It comes with a set of 3418915 small valve heads but the seller also has a set of 71 3418915 heads with the 2.02 intake valve. Motor is missing the carb, exhaust manifolds and waterpump and comes with a Edelbrock Performer intake. It's a standard bore block but it will need to be bored and heads will also need a rebuild.