Is there any way to set a total entity limit per player? Like setting 1000 entities and make that includo all possible deployd entity by one player?

Yes, it's possible, but I won't be attempting to. I would recommend one of the "upgrade" versions. The code here is not optimised enough to handle such a task without leading to player-kicking lag on the server, and it would be more effort than it's worth for me to try and optimise the code, and kind of unfair on the guys who have written paid, improved versions of this plugin concept. They are easy enough to find online.

Yes. They are easy to find but they all work similar to yours and havent answered a single one of my questions. Thank you for at least doing so. 

Time Zones, usually there's a few hours delay in most things :)