I have sadly seen all of your notes on how desperate your snoring makes you. I have worked with snorers and OSA sufferers for over 10 years. The stories are all too similar. Unfortunately, the surgery figures are really poor. Almost all of the surgery is unbearably painful, often works temperarily, then after often weeks or months the snoring starts again.
Sometimes side effects of UPPP, can mean you get nasal regurgitation, when you drink it comes through your nose. Its not good.
I know Mandibular Splints aren't particularly sexy, but they are painless, with little or no side effects, and most of all they are reversable. I mean they can be taken out. Where as if your surgery doesn't work, you can't have your Uvula put back in place!
There are a few very good splints available, there is one in particular thats mentioned on some of these boards, that has loads of clinical evidence, Try it seriously. I won't commercialize my comments as I work in a NHS hospital and don't sell my services.
I have made loads of MAS's and have had a great deal of success.
Good Luck, I do sympathise.