Let's keep it short and simple.

1. You shouldn't bother about worthiness of the idea to get patented as in no way you feel attached to the same. You said, you're an entrepreneur that loves to hover around internet et al.

2. Your partners are good and trust able people. In my decade of experience I've seen so many of them struggling to cash out their owndership at one stage or another.

3. Yes, go ahead and sell your ownership. This will be of help to everyone involved with the concept.

4. Do you need to discuss anything further please feel free to reach out to me.

Hope above help!!