@vickimartin Please ask your surgeon how many of these he/she had done. If the answer is less than ten, you should consider going elsewhere. It is a very complex surgery and people have gone through it twice because of failure caused by mistakes.
On the other hand, when successful as in my specific case, it feels great to have full function of the jaw back without worry. I can eat corn on the cob or an apple, which was impossible for years.
As far as walking after removal of the fibula section, it isn't to difficult to work that through inside a few months. Some phantom pain might be experienced, which for me went away after three years, and then it was only brief pain encounters.