The idea of funded development is controversial. What happens when devs wait around for a bug bounty to show up? Once money enters the equation, the fundamental relationship between developers and the project changes.
"What's the best way to get involved without taking on a project as big as people.djangoproject.com?" Administrative. Help with all of the non-coding thing.
One things the DSF can do is help fund a "how to get started" doc for Django groups. Editorial: There's a lot that can be done hand-in-hand with the PSF here.