> 1. After i buy the cost then what will i get,
An unmanaged VPS running a linux OS.
> 2. and how to set up my own blank vps?
We have plenty of articles in our community:
> 3. i want to install ubuntu but how in my blank vps?
You can select Ubuntu as your droplet's OS while creating it.
> 4. I want use Apache, MySQL, PHP, PHPMyadmin, Zpanel, SSL key (how to set up all of this) ? which one the first i do?
I personally don't recommend using zPanel but we do have an article on how to install it: