The Minds.com system is really differen.Here you will find a token to help others.Later you can make many benefits using those tokens.
You can probably take some of the logic from here, but not the code (obviously).
You'd need a developer for this, who understands your system and can put this into place.
I'd probably post something in the service category, explaining what you need & the logic there-in. Depending on the timeline (I'm somewhat busy rn), I may be able to help out with this. Send me a PM.