The biggest issue you will face is the wind. A 10' wide x 6' tall (assuming height - you didn't say) is 60 square feet of - sail.
I had a Mighty Mule opener on a 10' wide gate for a couple of years. It was seldom used, but in even moderate winds, it took two people to operate. One to press the button and the other one to hold the gate in position once open.
The amount of force even a moderate wind can exhert on a 60 sq ft sail is more than enough to destroy the opener when it's fully extended (in the open position). In the closed position, no worries.
SteveFasano's installation is very clever, but it would appear his gates are only about 5' wide each, and the offset slats will do a lot of good towards letting wind through. The GDO's will be far more durable in this situation (and in yours) than a "stick type" opener.
My father had a house down in San Miguel de Allende Mexico that had an opener that was a thing of beauty. The entrance to the courtyard was through a set of double bi-fold doors. Solid T&G wood over a welded frame. Each panel was about 4 feet wide, giving a 16 foot opening. It used a chain-drive opener with a modified track system. There were two "trolleys", attached to opposite sides of the chain, so they would move apart to open the doors and together to close them. The attaching arms from the trolleys to the doors were set up so that as the doors started to open, they would impart a rotation to the leading edge of the door which would cause the center of each bi-fold panel to "pop" open.
There are many ways to skin this cat. Whatever you do - take wind into account in your design. A gate that you have to man-handle in windy situations is no better than a gate you have to get out of the car and open/close manually.
Post back and let us see what you come up with...
Regards
Hate re-inventing the wheel if someone has already documented their set up. If not, I'll try to take pics along the way as to how I did mine.