Take a look at this:
public class EndpointConfig : 
    public void Init()
                .IsTransactional( true )
                .PurgeOnStartup( false )
            .ImpersonateSender( false );
The “*Mongo*” stuff is my own implementation for MongoDB of the NServiceBus Timeout persister and of the Saga persister.
Add a reference to NServiceBus and NServiceBus.Host via Nuget add the above class to a class library project and you have a saga hosting server “up & running” in seconds.
The implementation details are details and thus having a toolkit that takes care of all the implementation details allows us to concentrate on the core, where the ciccia* is as my dear friend Alessandro used to say.
*ciccia: word reference dictionary. Italian idiom to identify the important portion of something.