rough or rough?
I let mine run til they literally fall apart.
expect to pay around 300 per side plus tubes..
.. cheap brand.
used? sometiems you luck up and get good used, on rims for 100-150$ maybee even centers if you are lucky.
I bought a full set of rubber off an 8n.. rims and centers and all for like 250$ a year or so back. made great spares..