Looking for clubman bars.. What size?

I want to put them on my 77 kz650.

The bar size is 7/8ths right?

Ive found a few on ebay for around $20 + s&h but there is a disclaimer saying they are not for road use.

If some one could point me in the right direction (where to find them, reasonable price, size) i would appreciate it.

Thanks

Chaparral racing had them for about that without a disclaimer.