This is awesome news, and I am so glad for you. This is a huge first step.
When I talk to Scully next I will tell him you sent him a personal message if he has not already received it. I initially wanted the DS too, but I am going for the VSG. The lap band is not a choice I wanted EVER, I have seen many people not succeed, mainly because my friends mindset was get a quick fix, and then get it removed, they were not committed to making any of the changes. I am sad to say all the friends I have known to have lap band, have lost a lot of weight and regained it all plus some, it really was a sad thing to watch. It was also not a good thing to watch them eat more fattening food thinking the band will fix it all. These were not the typical lap band patients BTW, many Lap Bands have done wonderfully and succeeded quite nicely, but you have to make the changes and be committed to them first and foremost. Surgery is only a tool, you must meet your responsibilities too. At least that is what I kept telling myself until I am finally committed to eating properly and exercising daily, no matter how tired, lazy, I am, and OH how I can talk myself out of exercise... but I drag myself.... I feel better for it.
VSG eventually can be migrated to an RNY when weight loss stalls. I am very obese, and this is something that is to be expected, although I will do what I can just to make the VSG my last one.
I was considering Mexico at one point myself, not anymore, I am in the home stretch here and hoping to have my operatiion in the next month or two *fingers crossed*. Now that you have doctors approval, it should go quickly for you. Private pay is the quickest way to go, sad but true.