I decided against selling it.
Although I think there is probably nothing wrong with allowing all use once the photo is sold. Selling the rights does the same.
I'll need to study how the gallery function on Lensy works before I put my work on sale. Having the Creative Commons claus might be a non-issue as long as it is a permissive license and not a Sharealike license that doesn't grant sharing under different licensing.
We'll see...