Jon,

Don't be alarmed. The SPCN/SB100 process isn't that hard and the loudness shouldn't be an issue. The CHP assigns a VIN (I used my frame number but Oregon might have assigned you one already), the brake/ light inspection isn't mentioned by you but is just that, and when you declare to the DMV that you are using the BODY STYLE, not year on engine manufacture the only thing you need for the bar is a CLOSED system PCV valve. Smog is NEVER required.

See the diagram below for PCV info:


Make sure your hoses are PCV rated and your valve cover plugs are NOT vented and you should be good to go.