What type of TGB will i need?

Im designing a 2D fighter with a few associates and instead of going the crappy XNA route, have instead considered Torque Game Builder.
After a little bit of sniffing around, We notice many versions of TGB available at different prices, (ok 4)

Being as 2D Fighting does not have a starter kit for TGB, I'm assuming id need the source code included with the purchase. But then after more snooping around I've seen examples of normal TorqueScript being able to accomplish amazing things without ever touching the C++.
This is the preferable route id like to take (being the programmer as well), so my question is: Do i need the Source Code? Or can TorqueScript handle everything i need? Can i feasibly program a 2D Fighting engine using TorqueScript? etc.
(as a side question: can Torque Game Builder support Joystick input? Say a wired 360 controller?)

This is the difference between $100 and $250 here, and searching through the forums gave me no definitive answers. So im hoping i have better luck here, heh.


Thanks for your time!