They do not have a set price tag. You can loosely associate the prices on the fo76market discord to LL3 and try to convert those to what folks pay here for LL3. I have the below masks and can make an offer and look more in depth at what they are worth after work today.
Glowing masks
Glowing Honey Bee
Glowing Scorch Beast
Glowing Scorch Beast Queen
Glowing Turkey x2
Glowing Minotaur
For non glowing rares I have
Brahmin
Buffoon
Crazy guy
Fiend
Hag