I've got 35 map products offered on my DrivethruRPG publisher page, and I will be releasing adventure modules soon, written by known author/game designers that are basing their modules on maps I've already published and sell. I've been doing that for a couple years now. In the meantime I regularly do map commissions for publishers. So you don't need to encourage me, I've been doing this for a while now.

I even offer map tutorials guide book from the same page.