Roadking53, I'm piecing my 59' together right now and dealing with the fan shroud location issue as well. In my case I built the mounts for the engine and as you said it sits low. I'm using a short water pump with a 7 blade fan and fan clutch (all are 68 Camaro pieces), I have a 4 row Coldcase radiator that bolts in the factory location. The radiator is a great product and bolted directly in place, I 'm also using an ABS fan shroud. My engine is located farther forward than a stock V8 Location (for firewall clearance) which brings the fan to close to the radiator. I am going to modify the radiator mounts to set it deeper into the core support, about an inch, that will give me the correct distance to use the fan clutch.
The point here is that you should be able to mount a 4 row radiator and fan using the factory location. An ABS fan shroud would work great and can be trimmed as needed. I purchased my shroud from H & H Classic Parts in Bentonville Ark (great service and prices) being in Atlanta you have many options with parts.
Good Luck.