Hi Mike,
I think I was in a similar position as you about a year ago. It took a while for me to get to the point where I could acknowledge that I wasn't in control of my health and needed a tool to regain that control. You seem to be at that point. We have a lot in common as I maxed out at 305lbs BMI 41. Same story with sleep apnea, back and joint pain and swelling.
As far as my research and experience, being younger helps with quickening the recovery and lowers a few risks of problems. The lapband procedure only had me in surgery for an hour and I was only in the hospital from 6am to noon beginning to end. I was moving well on the 2nd day and I was back to work and exercising without issue on the 5th day. I'm at the 1 week point, so I'm still "mourning the loss of my former pal, food" a little, but I'm holding up ok. I'm also a part time grad student and I have been able to keep up without missing much. The lapband with laparoscopic installation is much less debilitating than other methods. Its not a walk in the park, but it doesn't have you on bedrest for days and days.
Good luck to you as you work with your doctor, insurance company, etc.