I'm using an accessory drive kit from March Performance that mounts the alternator and AC compressor up high - so frame rail contact is not an issue. http://marchperf.com/styletrack_hemi.html
The basic Hemi kit is p/n 40710 that has a Sanden7176 AC compressor, a chrome GM 105 amp alternator (It pains me to have it on a Mopar!!) and a GM PS pump (more pain) and a new water pump.
The other optional parts I got are: PS remote Reservoir 450 PS line kit for Mustang II rack P3211 PS pressure reduction kit P306 Chrome upgrade for PS pump P318 AC chrome manifold 418-06 Alternator upgrade from 105 to 140 amp P574
The quality of this kit is first class. The finish on the parts is outstanding.
After I bought the kit, I found there have been some reported failures of the water pump with this kit due to high load applied by the belt configuration. Dennis at Roosters Rod Shop (who has done several of these conversions) suggested driving the WP direct from the crank pulley and using a shorter belt to drive all the other accessories.
The belts to do this are:
Gates multi groove belt K060325 -water pump Gates multi groove belt K060770 - accessories
The first photo shows the kit belt configuration and the 2nd photo shows the modified belt configuration