Hey Kurt,
I think the answer to your question depends on your personal preference and what your plans are for the restoration. If you're really interested in originality, as I was, factory A/C would be way to go. However, I know of many that have installed aftermarket A/C and are very happy with it. Sounds like you have some of the key parts needed for factory A/C. And if you decide you prefer that approach, I have a nearly complete "rest of the system" available. Several of the components are really hard to find, such as the fan shroud. If that's of interest please PM me.
Chuck