As long as the A/C is on another 2.6 you won't have any issues with mounting the compressor. You will need the additional crank drive pulley on the 2.6 to run the compressor. As for power steering, maybe the Montero steering box? Once again you'll need a power steering pump that will mount to the 2.6 with the additional pulley (perhaps from the Conquest). There were MM's with power and A/C options but they may be a little thin on the ground to find.