The sheets that I buy are only like $.78 ea, so for $5 I could get you like 6 sheets, but then you would be paying an arm and a leg just to ship them. Call some of the closest cross-stiching places or yarn places around you they are about to have them somewhere near you.
The best I can tell is they are called needlepoint plastic canvas. There is bound to be a store near you that has them. I mean I live out in the boondocks and we still have a walmart, but then again they will put a walmart just about anywhere these days.