Heya, so I'm completely new to the game and was wondering if I should go with hunter, or ranger for gunblades? And which skills?

Also keep in mind, that I'm more into the pew pew side of gunblade instead of just... swinging it around as a sword xD

and a small side question; I can't figure out for the life of me how to trade between players. If someone could tell me, it'd be much appreciated