1. It should work man.
2. It is basically easy to install. Once you bought the product, installion guide will be provided.
3. If you don't want to risk your legit account, better cheat on an alt account so you wont regret.
If you go to the Store Page. It is a subscription base, you can also buy lifetime if want to.
As i said, every information will be given to you once you bought the product, so you dont have to worry.
If you have any more questions, feel free to reply here or create a ticket on discord.