I`d recommend Softaculous plugin with its integrated wordpress management for this, https://softaculous.com/
Its dedicated server license costs only $24/Year
As @johannes said, Softaculous is the way to go for this. less than €2 a month, you get backups with their backuply software which is very good. Staging, Installs and more. Other than that, you're looking at waiting until DA team get around to implementing such a feature, or using another control panel that has staging built in (there are a few)Well, Thank you , but this meaning extra $24. In my humble opinion this service it must be free of charge.