I recently decided to do the GPG-thingy again and took the chance to switch to another Password-Manager (and set up Debian as my main-system by the way).
Pass is a simple password manager, build around tools you're already used to. It's based on GPG and works fine with Git. It's lightweight and overall fits my needs. The conversion from Keepass to Pass was simple and fast (conversion-scripts for several file-formats exist) and the tool works perfectly 100% of the time.
So my recommendation is:
If you already got your GPG-setup handled, just screw 3rd-Party file formats and dependencies, use GPG and Git and you're down to the most basic setup you can imagine. Not more than the required, not more than needed.