Vintage air unit

So i called classic and they were very helpful. Apparently their most recent kit you can use one of the round knob control set or the mod to the factory sliders. It plus in the same. They also told me they could give me a set of bulkhead fittings other than the one in the kit as my factory ac hole has been plate filled and smoothed on the firewall side. The guy was very friendly and said he would put together any combo I might want. I think I am going to go with them.