Hi megs!
So my insurance is the same way where it doesn't require much. It's covering my surgery so that's great too. The only things I have to go through are a psych evaluation and attend a support group meeting.
I haven't talked to my dietician yet about the pre-op liquid diet, but I'm getting close to that conversation.
Also, I see that you're considering the sleeve. The sleeve is great if you are looking for portion control with food (mainly) whereas the gastric bypass has that as well, but also really helps with other health problems such as diabetes, high blood pressure, etc.
I'm getting the sleeve done, because I don't have any health problems associated with my weight, but the gastric bypass is still a good option.
Anyway, good luck on your journey!!