Aftermarket A/C Suppliers??

[117329]

I just ripped the a/c system out of a parts truck to add it on to my 84 sierra which I am restoring. I have everything out of the other one, but before I start cutting and welding the firewall to adapt to the different heater coil, etc. I figured I would come here.

 

What company provides the cheapest aftermarket a/c systems?

 

Also, given the parts I already have, (compressor, condenser, etc. etc.) do I have any alternative options? The only problem lies in the firewall. The plastic box under the dash and the box with the heater core or whatever it is that mounts to the firewall is my only issue, while its able to fit, the holes are of course different.

 

I have my motor and trans out and its stripped to the cab so now I must decide what to do.

 

I appreciate any input.