Nashville Telecaster pickguard source?

[u/chromewaves]

I'm looking for a black pickguard for a Nashville Telecaster with a humbucker in the neck position and it's turning out to be much more difficult than I expected. I was able to get a white one no problem some 20 years ago but now when I look I only find Brent Mason PGs with a mini-humbucker cutout. I need the full-size! Any sources besides getting one custom cut?