1) Braces - Focus on finding a great orthodontist. This is probably more important than the type of braces you pop on. Is he/she understanding/accommodating. Will they explain what they are doing and work with you to find the best solution. Do they do great work? This is what you should focus on. Before knowing this and looking at braces I met with maybe 4-5 orthos, no joke to get a feel for their process, how they handle patients, type of braces and so forth. I would also recommend NOT getting in braces if you plan on getting surgery till you have a surgeon you want to work with. You dont want to spend 2-3-4 years conducting the research process while your ortho has no guideline of how to move your teeth, you know?
3)Surgery can cost anything at this point. Till you've decided to work with an ortho and surgeon, its a shot in the dark. Are you looking to stay exclusively in network? Are you looking for experts in your field?
4) Braces can cost anywhere from 4-9k. It will depend on cost of braces in your area, treatment time, expertise of your ortho. Highest cost doesnt mean the best, just keep that in mind.
I say pursue it if you are very patient and willing to take a few, or a lot of bumps along the way. For some people this has been the best decision of their life, for others the absolute worst. There are a lot of risks involved, problems that can come up and so forth, its sugery, no two ways around it. People who have VERY serious breathing, jaw, bite, aesthetic problems in the hands of a competent surgeon stand to gain the most. People with very mild conditions, stand to possibly lose a lot more and hence a more difficult decision making process.