47-55.1 Dash knobs

[TX3100Guy]

Since the wiring harness is almost installed to all of its locations, I'm working on mounting the Vintage Air unit against the firewall. For now, I'm going to use the lower dash shaped plastic section that they provide to hold three vents and three fan/temp/mode controls.

Rather than use the generic black plastic knobs that they supply, I'm thinking that I'd like to use three of the knobs that are already in my truck. The issue is, I don't know if they are original to the truck or if the previous owner swapped them out. Either way, I need to find three of them, to replace the Vintage Air ones. Any thoughts or pointing in a direction is appreciated.

Here is a photo of the current knobs, including the wiper knob and one from the headlight switch, along with a spare that I found in the box of parts that came with the truck. So.....I either need two that will match or three new one for the AC unit if they look slightly different or new.