I was just perusing the website for Century Martial Arts. They're the equipment company who produced the uniforms for the KK movies. They have a new uniform customization service. The minimum order is 12 uniforms.
They will do silk screened graphics in just about any size using up to four colors, on just about any uniform, in just about any color.
Since this is the company who made the original uniforms, it is the closest we're likely to come to a real Cobra Kai gi.
It would probably be cheaper to get the white dojo gi with the black and white Cobra logo on the back.
If we can get together and do this as a group, we could probably get the uniforms for a reasonable price.
If anyone cares to look, the site is" centuryma.com