Lots and lots of questions, 1GB a month is not a lot either.
Lots of AV provide a free VPN, all limited of course, Kaspersky’s is 200MB a day. Using a VPN at home is IMO not really warranted from a security angle. 99% of your connections are going to be https and a “man in the middle” is extremely unlikely.
If really need a VPN server, Digital Ocean have an automated OpenVPN server builder. The basic $6 a month “droplet” (a Linux VM with 1 CPU, 1GB ram and 25GB SSD) is all you need and it comes with 1000GB of traffic. You get two accounts for free, which will be fine for most people, and it’s easy to find many scripts on the net to build your own which will be unlimited users.
If you’re after geographical shenanigans there are data centres in the US, Europe, Singapore, Canada and India as well as London. The London data centre is Telehouse, so it’s got fantastic connectivity. I used to have one there for MoD work when on the road and it always ran at near line speed.
The droplets are actually billed by the hour, the basic is 9/10 cent, so you can experiment and see if it’s for you without running up bills. I’m sure there’s something similar on AWS, but I much prefer using Digital Ocean.
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