Factory air or aftermarket?

[76kcfdeng]

So I have started the rebuild of my 70 with a factory air cab. I was planning to use the factory air setup. It has all the stuff under the dash and on the fire wall, has a compressor. I have no condenser, hoses and dryer. I just discovered that the fan does not work, have done a lot of diagnosing yet.

So the question is what do you think the cost difference is between getting the stock setup working and a complete vintage, old or other companies aftermarket setup? What are the advantages/disadvantages of either? I know I can clean up the firewall and shave the cowl with aftermarket.

Give your opinions especially if you have either working.

Thanks, Glen

Whoops, did not mean to put this in projects and builds.