This is all a moot point.
The condenser is installed.
Even if i knew the volume difference between the condensers, there is no way to know thar it would scale the oil quantity. With different refridgerent flow paths, there is no way to know how much the new condenser would retain.
Ultimately I chose to use the same quantity as the FSM calls for. I will be adding it to the drier when I am ready to charge the system, unfortunately that will probably be next week since I am waiting on pressure test equipment to get here.

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'85 300D - federal spec, built in late 84. 85 300D Complete AC System Rebuild