Getting parts together to add ac with vintage air

[Slowguy]

First, will vintage air work with you and let you purchase a “kit” assuming you already have certain components?

I have a 67 no air cab. I bought a low profile mini sanden compressor to get it on the block before I set the engine. So I already have a brand new compressor. I don’t know if it’s usable with a newer ac setup but I also have a pretty nice, original ac control from an ac truck. Right now I’ll still need the rest of the system.

I have the option to purchase some original round dash vents and the center vent from an original truck I’ll just paint it the color of my dash. If I cut the holes in my dash will these original vents mate up or to cut holes, or do ac dashes have more than just a hole? Is the metal shaped or formed to accept the round vents? Since I’m purchasing an aftermarket kit anyway, would it be better to just use their vent kit for a non ac cab? Assuming the original vents are ok to use in my non ac cab, and assuming they are a “more original or better-looking” option what do they typically sell for when comparing to retrofit vents with a complete kit?