air conditioning question in panels and burbs

[fredscarryall]

i have a 1950 suburban.can anyone tell me what air conditioning set up they are running in the 48 to 53 suburbans and panels, maybe even up to 59? i know vintage air ,hot rod air, classic auto air and old air products make set ups for the cab of the 48 to 53 trucks. i have called all of these companies and non of them are really sure there truck systems will cool a panel or burb enough.some say i should run there $1500 air box and others say i need to run a second rear air unit. has anyone used the truck system in there panels or burbs. or is there a system of of another vehicle i can use without a ton modifications. i am planning on running front and rear seats. information or pictures would be helpful. if anyone has ever ran a/c and heater hoses through the side kick panel to give the firewall a clean look would also be nice to see to?