INTEC Ps3 Arcade stick help

Hello people, I’ve just started using arcade sticks recently so I thought that buying the cheapest one would be the best option. Fortunately, I don’t have too much problem with it. The way I play makes me comfortable even though it is small.

Thing is, it has a ball-top and I like bat-tops better. I’m a total newbie on construction and all that kind of things, plus I’m quite broke. So I can’t afford a $100 stick. I was wondering if it was possible to change the joystick.

Anyway, if somebody could help me out on that one, I’d be thankful!

That’s what it looks like: