My mom cancelled the internet because no one in the house uses it except me, and she doesn't have any respect for gamers. My only choice now is to grab a USB stick with a plan and I need help to find what plan I should get.

Keep in mind I will be playing 1 hour a day.
I also will not be downloading files, watching youtube, emails etc. It is 100% for playing FFXIV. I will bring my machine to a friends house to download updates and patches.

These are my options:

$20/mo - 100MB data
$35/mo - 500MB data
$50/mo - 2GB data

I don't want to exceed $50/mo but if I must, the next plan is

$70/mo 5GB data

Thanks for any help, hopefully I can be back up and running by tomorrow.