I'm being 100% serious here.....
Fedor should sign a 1 fight contract with Bellator, fight Kimbo Slice on free TV, then after he wins, sign a 3-4 fight contract with the UFC.
The reason it works is because #1: Fighting on free TV is huge and gets his name back out there. #2: Kimbo is a relatively big name with little risk. It'll help boost Fedor's hype leading into a UFC debut. #3: This would be a smart move for Bellator because (with the right hype) ratings would be huge and they make bank! #4: Both Fedor and Kimbo make bank. #5: Win/Win for everyone.
Only problem is, Fedor seems like a loyal guy. If he does that with Bellator and they treat him good, he'd probably just sign an extension with them.