> PS: Please do go with the support plan route for your open source project. You wouldn't know how it will turnout unless you try.

But mind that there are more scenarios than "works out" and "doesn't work out". It might also for instance be that you get some customers, but too few to pay the bills, but too many to switch of the light. It might also be that suddenly paying customers demand the project to go a different route than you (and the contributing community) envision. Both of these can bring major tension to something, which had been fun before ...

Doesn't mean it's not worthwhile, but be prepared for it, to keep it on a track you're happy with.