I know that it's not a Wurly scope but it is a piece of surround sound history. Looks like the CRT is still good and it contains an audio sweep generator.
https://www.ebay.ca/itm/386518126704?hash=item59fe469070:g:AI0AAOSw0FJlaRQP
https://www.ebay.ca/itm/386518126704?hash=item59fe469070:g:AI0AAOSw0FJlaRQP