This is one of about a thousand ways to do this.............
The homemade tee/elbow screws down on the opening left when I removed the road draft tube - uses a "straight" PCV like the one you found on ebay. The check valve in the PCV prevents a backfire from pressurizing the crankcase.
The hose loops around behind the distributor body and back to the PCV port on this Holley carb set-up......