I don't understand, why don't you load all the films at home?
So you have to carry a bulk film loader, one or many rolls of bulk films, limited number of cartridges, how do you get more empty cartridges if you shoot more than 30 rolls? Local photo labs may or may not want to give you the empty ones, you may or may not be able to develop the negatives on the road.
Cost aside, these are things you need to reason first before you are heading to the airport! When you sort out the reasons, I think this is a mull question.
In addition, it is your honeymoon photos, why risk with less-quality-control home-load bulk films when fresh-dated films are inexpensive if purchase at bulk price. You can take 2 cameras and 4 or 5 different type of films, including tungsten light for dinner shoots.
sleep on it,
cheers,