I made a copper coil from the compressor to the storage tank to help with the heat. Also I get my intake air from the outside of the engine compartment for even more cooling.
The storage tank is under the batteries and the copper tube is like 5 feet worth of coil, and the air intake is right below the pass headlight on the grill. And the compressor was rebuilt(by Extreme Aire) with new bearings and grease paths to also keep things smooth and as cool as it can get.
This setup runs hot, as do ALL air conditioners that are converted, even Yorks, the Freon has a oil load in it to lube and cool( the freon) the compressor. Without this oily freon we need to deal with a lot of heat. But mine runs cool enough as to not be an issue for me. I have ran it for 5 modded Jeeps worth of large tire fillings, about 40 minutes solid of run time without issues of heat(I did open the hood and rev the engine a bit).
Heat will kill your compressor if it is not delt with...