I think that you need to re-consider your decisions.
By delaying surgery, you are extending the amount of time that you will have pain. All of the PT in the world, while it's wonderful, cannot completely fix hip pain.
Hip replacement surgery will decrease the amount of time that you are in pain.After approx 2 weeks post surgery, you will be feeling a lot better.
For those who delay with cortisone shots........those shots do help some people...not all. Those shots should not be given within 6 months of surgery.
See if you can get the hip done before you go away, if not...rebook the trip after your surgery. The stress of worrying about this is not good for you.
I wish you good luck !!!