You will be fine with the preset for now. Yes the price is good. Since you are saving so much don't be cheap and get a Gladiator reg to use as a fore grip instead. Consider the $$ you are saving getting the gun used and all ready to play, then add the price of a foregrip and its better to just spend an extra 40 on a glad which also makes a great fore grip.
Depends on on shots outta a 65/45 you could expect maybe plus of 1100.
Glads are only 75 at http://www.animalpaintball.com
then click Tank Stuff
at the top menu and scroll down for the glad. They only have call in orders at the moment. I'd get the glad if I where you.