which bolts to undo?

The bottom bolts on the biscuits are probably the easiest to get at since they face toward the outside of the car.
It's a straight shot with an extension and deep socket from just under the front of the tires. (about 2 min for both sides)

The top ones are not too bad except you have very little room to turn them very much at a time, and kind of the same for the bracket to block bolts.