Hi Sylvie,
I don't know your specific circumstances but perhaps your group can coexist with this gentleman's targeting different recipients. If the earn-a-bike model is what you want to invest in with your time and resources and someone else is "giving away" bikes - how do they pay for the parts/consumables necessary to restore bikes? Are they also working in a non-profit or are they paying for everything themselves? Could they be brought into your model if it were explained how there is more than a bike that is being "given". I hope that he will be able to listen to why the earn-a-bike model has much more social impact through teaching and the recipients "owning" the bike through work and how it is a shared experience. There is also the parable of giving fish versus teaching someone how to fish...
Good luck and let me know how it went,
Therese Kilpatrick
Project Bike Tech Teacher - Aptos High School