im 18, the game itself costs only 25? at amazon
the prob is how you pay the monthly duty...
since you are under 16 i doubt that you have a c/a jet, but talk to Mclasskillah, maybe he gives you a 2 month gamtimecode for free (i dont neet the code anymore since i can pay via c/a (im to lazy to order a credit card, didnt need one jet at all)
the trial (as far as i know) has the same features as the registered version, dunno if you can continue playing with you char after the trial has expired, just ask in a swg forum
when you have the trial just join up with mclasskillah at the lowca server, im sure he will support you with some cash, items and tips
im on a different server ( Gorath ) where mostly german players are around