It's about your face. The thing that people will see first when they meet you and the thing people will judge you on first. You're looking for a permanent change and you want it to be the best possible outcome. If 500 km are an obstacle for you, I'd recommend you to refelect on how important this issue is really for you. Do you think you NEED to get it done to fulfill expectations of others or do you WANT to do it for yourself?
Remember, even if surgeons say the surgery is reversable, you never really know how the surgery affects your tissue (and thus complicating a reverse) and you don't know how your tissue will react to the reverse.
You can go to consultations with local surgeons, make them show you lots of photo material and let the explain the procedure in detail and please go to more than 2 or 3 surgeons. If you like what they're doing than I don't see a reason to not go with them. And please read and educate yourself on the surgery you're looking to get extensively.