How many? 10%? 40%? 75%? It's not a trivial question.
If you can't clearly define the need you are addressing (they can't) and the scope of your plan (they won't), then you don't have a practical or responsible proposal.
And whether I'll be okay isn't the point.
Brushing aside the costs, which would be substantial, with the rationalization that "you'll be okay," (whatever that means), is not a serious or responsibly thought out position.