I think clifford or offy 4 barrel is the way I'll need to go. I just read that they never made the super six in cali (where I live) so finding one in a junk yard is going to be even harder. :(
You aren't going to find a 4 barrel setup in a junkyard either. You have to decide what goals you have for the car. Power? Economy? A little of both? The 2bbl setup will give you 20-22mpg on a nicely tuned setup with matching exhaust. I've heard a 4bbl can get up to 20mpg on the highway but you really have to feather the throttle to make sure you don't open up the secondaries. A 2bbl setup is much more forgiving. Do you want to spend a couple hundred or $500+ on a swap? You have to decide what you want from the car and then we can kind of give you a rough estimate on what you need.
Forget about that ebay auction. Doesn't come with the kickdown, carb or an air cleaner. You can end up spending a lot more that originally thought by piecing these things together. These guys that are picking up entire setups for $50 at yards are few and far between. Most 2bbl setups go for $150-300 online depending on condition and how complete the setups are.