It`s not easy to get everything under the dash, but I did it on mine. Buy the biggest condenser you can fit in front of your radiator. I made my own brackets and bought a larger amp. alternator. you have to move things around a bit and someone is advertising in the Studebaker magazine about brackets to do this, and they look nice and will save you a lot of work if you aren`t a fabricator.
Be sure your cooling system is in good shape. I just bought a NEW radiator on Ebay , It`s aluminum and fits like a glove. It brought my engine temperature down about 20 degrees. This is the first time I`ve ever seen any for sale, so if you are still using your original radiator I suggest you replace it with a new one.