airconditionign in 86 c10

i have an 86 c10, do you guys with box trucks run ac? when its dropped theres no way the evaporator can be where it needs to be cause its almost 5 or 6" too long(the wheel is where it needs to be) is there another evaporator i can use, like maybe from a suburban or something?

i went there and theyre sending a catalog, thanks for the help