I'm currently working on the same situation, and am making a hack specifically for that. It adds some functionality for the end users as well (kinda like incentives if you will) to contribute, like toys and stuff for their postbit, recognition for the contribution, etc. I'm hoping it works for me, but it may help you as well when I finish it up.
You can take a look at the progress so far here:
https://vborg.vbsupport.ru/showthrea...threadid=53732