Then you are living in a dream. What you suggest as a workable outcome is great, but it won't happen if any of it is a No, and you won't say what comes next if any of it is a No.
Are you willing for the U.S. to walk away from Ukraine, wash our hands of it, if the parties do not all agree to your plan?
If you are, why not just walk away now? We've spent plenty of money and time trying to bring about an outcome similar to what you suggest. When to we realize we want peace more than the participants do and stop being suckers?
Maybe they will want peace if Uncle Sam isn't paying for all the weapons.