I'll keep watching and also be buying eggs. I have had quite a few polish breeders say that fertility is off and laying is slow through march-april. Keep me posted if you find some as well. TBH, I don't think these are the prettiest Cuckoo polish I've seen. If you encounter any Crele polish, please let me know!!
I know someone within a couple hours of me that has Buff Laced Polish and I had a great hatch from her eggs last year so I'm waiting for her to let me know when her girls start laying again.

She may actually be close to you!
Of all the breeds available near me, I've had the hardest time with Polish. People either don't keep their flocks or they mix all of the Polish together.

I actually have a couple of wonderful local friends that have both Marans and CCLs, one even has a chance of Frosted Legbars in with her CCLs. I have one from my hatch last year, she's so cute!