WTB: Set of front or rear tires

[Honda 250r 001]

im looking for a set of motocross 18 inch front, rear or both tires.

Fronts, im not sure if they make a 18-7-10, but thats the size of my rim , if you have rims for the front too im interested.

Rear: Looking for 18-10 or 11-9.

Thanks