Mini Bike Driven Sprocket

[Cosbro]

Does anyone know where I could get a driven sprocket for a decent price.

It's for this project.
http://www.diygokarts.com/vb/showthread.php?t=41122

 

[Hellion]

What's the bolt hole pattern (measurements) for the one that's already on it?

Got pics of the old sprocket?