1965 Factory C-10 A/C Question

[sickboy_1456]

Does anyone know if they make replacement vents for the original in dash air conditioning trucks? The vents in my truck are in decent shape, but I'd like to purchase new ones along with new a/c knobs which were stolen years back. Here is the peice I'm refering to for reference(Not mine, but same). Mainly just want the actual vents, not the whole peice, but not sure if that's available. Any help would be greatly appreciated. Thanks.