Given the waking and the rides, I would guess that it would be better to move that one back! Good luck on the surgery and let us know how it goes.
I would discuss your vacation date with your doctor. Some people do well after surgery with few complications (this is the norm) but it does take time for the hormones to settle and more than the physical side of surgery will be the hormone side that will be the issue imho as it may make you more tired etc.
If you have insurance on your trip, yeah! I would also plan to not be super duper active as you are still healing and while you are technically over the hump, if you go full bore, you may bust open your surgical site or get a csf leak. Otherwise if you mean to lay on a beach and chill, it may be a great thing.
You really won't know until you have the surgery. I felt much better after mine, I was super sick before surgery, so that can play a part in post-op recovery.
Talk to the docs, and it depends on the plans.