Looks like you are the new hero of the thread.
Congratulations!
The good thing about MEGASync is that you can pause individual downloads and resume them later, so if you hit the 5 GB limit you can pause the download and finish it the next day if you can't use a VPN.
That of course requires a bit of patience from downloaders, which TGO fans don't seem to have sad to say.
On the bright side bi-monthly incremental TGO updates are usually < 300 MB and so can be downloaded without any worries by most parties.
Full game downloads on the other hand are where the problems begin
and MEGA is kinda pricey for cloud storage compared to other solutions.
Enjoy all the favorable karma coming your way and good luck.