Here’s the “viable plan”. Use the current BCS system for the greater good - that is to seed teams from 1 to 16. Then, set up a tournament.
You can use the bowl games or not use the bowl games. It should not matter at all.
The lesser bowl games can continue to run and be a reward for the lesser teams.
There is a problem in using any major bowl game as a lead up to a National Championship. I know you know why.