I would go through the wheelwell. Clearance will be tigher without a bodylift, but it should be possible. This is one of those cases where it is pretty much a custom approach. Do whatever works. If you really can't get to it, pull that stud out of the head and the head will lift up with the bracket in place.

You might even be able to get a wobble socket on the lower PS bracket bolt and clear the A/C pump without removing it. It will have to be a short socket, as there is zero clearance in there. But, I don't know.

Good Luck,
Michael