i know how your wife feels and she is lucky to have found someone like you. I have a class3 malocclusion and knew that i would need surgery, so first step is to maybe make an appointment at an orthodontist and a maxillo-facial surgeon. they will give you a consult, take some images of her and recommend steps into approving her appearance. I am 33 and decided to start my journey - and i already feel better about myself even if i am all braced up, at least i know that in just under 2 years i will have my surgery. I have done lots of research about the surgery and have even watched wuite a few youtube video's and have not yet seen a bad review...everyone just seems so happy after they had their surgery and i cannot wait. Tell your beautiful just to go have her consultation and maybe she will feel a lot better about herself.... Ones self esteem really does get one down on many days but only she can change that!
good luck to both of you!!