Pronto Workshop - Is there a special provisioned trailhead or DE org to use for the Pronto workshop?

Hey @David C Colson, Coworker is available with the default SDO. Try to get the default SDO through Partner Learning Camp if you work for a salesforce partner. 

You just need to activate Data360 and Agentforce, assign Agentforce Coworker Admin or User permission, then Turn It on in Setup.