Stefano, unless it was sold to another owner, probably wasn't the same one. The town of Elgin is quite a way from where I live, and where Westmont/Downers Grove/Hinsdale are.
There was a stripe-less (stripeless?) 69 Daytona Yellow Yenko Camaro at the National Musclecar Brokers (WAY north of me) that we saw a while ago. Had a letter from Jack Douglas Chevy verifying its' authenticity. Didn't seem like a Yenko though without the stripes and the headrests.