Congratulations, you just came up with a proprietary license concept. That's great, but don't misuse the phrase "open source" or "free software". Perhaps a better alternative to the absurdely complex system you've proposed is to simply exchange software licenses/units/subscriptions for cash, the way it's normally done. Other people can contribute to your software through "contracting" and "being hired". This is the easiest and most straightforward way to handle proprietary software.

If you truly believe your concept deserves the name "open", you should research the concept at https://opensource.org/ and reevaluate.

Open-source software is for everyone to use, not just those advantaged enough to have free time to contribute to projects in a secret club.