Take a look at these links of a small intercooler and small radiator. These sizes I can fit. Will it be sufficient to cool down the air temps? I can make these work. I just have to build a heat shield below the cooler from the exhaust manifold.
Barrel Water to Air Intercoolers
Transmission Cooler
Will a caller like this work?
http://m.autoanything.com/drivetrain-differentials/flex-a-lite-compact-oil-coolers