I say blow all the money on the trip. An airsoft gun is a physical object that can be replaced, airsoft is going nowhere in Canada. A cross the world trip is an experiance that is different and unqiue everytime you do it. I say drop the wad on the trip and worry about saving up again to buy when you get home. You never know perhaps you will meet a "Nettes reizvolles Mädchen" while you are over there and stop thinking about airsoft all together!
"Its only a little bit on fire"