If you smoke, you'll be able to handle snus. You put it in your upper lip because you will salivate while using it. But because of the miracle of gravity, the spit will not touch the snus. This prevents the need to spit. The first time you use it, it will actually sting a lot. I suggest getting a minty flavor as well. I hate to bring brand names into this, but camel definately has the best product, even if it is a bit more expensive. I used it pretty regularly for a while, but I was also smoking at the time, and it really only helped to tide me over while I was waiting for a smoke break. That being said, even the original was kinda tastey. Hints of citrus and coffee or caramel. Very melow. It's what I ended up settling on. The frost is really good though.
Also, how long til you ship out. You could use the ecig now to reduce your cigarette intake, and use it in designated areas when you get there, and snus when you can't.