First off, 2 things.
1) I would not recommending "doubling up on" or tripling your injectable dose prior to leaving. It is not very healthy, but you will also feel bad, get bloated, and have a lot of excess aromitization to deal with.
1g of testosterone in one shot is a LOT.
2) You could probably bring some orals. A contest oral would be helpful, if you're doing something like a beach vacation. Something like Anavar, Tbol, or even winstrol... something that doesn't aromatize, since you won't be running anti estrogens.