Best Practice for deleting OLD Rhythmyx objects we don't use anymore ?

Hello,

We are looking for the “Best Practice” to delete old Rhythmyx Stuff we don’t use anymore.

Here is the context. In the spring we finally upgraded to Rx 7.2. After that, we decided we wanted to
move from “FTP publishing” to “File System” publishing. In this exercise, we were careful to clean up our
“Editions”, “Content Lists”, “Location Schemes” to publish only the items we still use on our site.
This cleaned up “File System” enviroment is now in production.

What is still left to do, is to delete the OLD Rhythmyx objects we don’t use anymore.

In the Workbench, we have Content Types, Templates, Slots we don’t use anymore.
In the Content Explorer, we have Items (from now unused Content Types) we don’t publish anymore.
In the Publishing Design, we have Editions, Content Lists, Location Schemes, …we don’t use anymore…

Surely, we are not the first Rhythmyx customers to want to do this type of cleanup.
I can easily imagine that there are a lot of steps involved, and that their order is important!
Any all-ready SQL’s we can use to facilitate things ?

I hope someone can guide me towards documentation or a “best practice guide” on how to delete
Rhythmyx Stuff not used anymore.

Thanks !

Marc