Specbolt has specialized hardware that is just as good or better than OEM.
They're cheaper, brand new, and probably easier to acquire than OEM.
They're definitely willing to work with you to make sure you get all the hardware you need in a kit, and every customer that adds to the list just means that their bolt kits are that much more complete with fewer extras or missing bolts.
One other thing...
Polished steel isn't resistant to corrosion, so the only way you're going to get durable, shiny hardware is to have them chromed.
Make sure they don't chrome the threads though, or you'll have similar galling issues that SS hardware has.
I guess you could clear coat the polished hardware, but the finish wouldn't last long under the torque of a wrench.