No reason to be tools guys, point him in the right direction and since you took the time to flame you might as well give him a hand.
If you paid 150ish for all of that you didn't pay too much that's not too bad considering all that you got.
Upgrades you might look into:
Feedneck (Impulse threaded)
Custom Products makes great triggers as does NDZ, I've used both and they
have worked out great.
If you want to go this far with your upgrades you might as well go with a
virtue board, I've shot 3 or 4 different guns with virtue boards and have been impressed.
Again not really necessary considering your purpose I would guess is just recball but I've used an ultralite, a freak, a proto, and about a half a million stock different stock barrels and for the money, the freak will give you the best number of bore sizes all for about 150 but there are tons of different barrel kits out there so choose whatever fits your budget
Also next time, post in the Smart Parts section of pbnation and you won't get as much flak from people