Intake Manifold for H23

Is there anywhere to buy an intake manifold for an H23 engine? I can't seem to find any and was wondering if there is an alternative to Porting and Polishing the stock manifold, especially since i live in Illinois. Thanks for any help.

ebay.com

Thanks, I'm pretty skeptical of OBX though, and there doesn't seem to be much else on there right now. I'll keep my eyes open though.

Also, does anyone know a common price range for local shops to port the intake manifold? What about the throttle body?

around 80 i guess