Woot Woot !!! I am so happy your taking this trip . Much deserved Much deserved
I would start bumping my med time 6-8 weeks prior to your trip, Move them an hour at a time , hold for a week then move again until your taking your meds based off the time change.
Also keep in mind your normal routine is gong to be jacked up. (I deal with this twice a year when I go visit the kids.. it tosses me a bit sideways.) Make sure your devoting enough time to sleep. Your likely to get a good dose of Hypo just taking a dream trip... So just remember to do all the self care you can. Try not to stay awake doing 1001 things each day.
Most of all have fun.. Just enjoy