yeah unfortunately its not worth even 60 pounds, microsoft is so greedy because they hold a monopoly so they don't care about the customer and freely run their spyware, adware and what not just to get more profit.
It's not a gming pc it has integrated graphics, your best bet is 30fps at normal settings
I would say that the gtx1050 would be the best card closest to that range. the problem is that regarding this build its sort of intended to run on the cpu alone using integrated graphics. so your problem would be that the gpu at that price range would bottleneck the cpu. If I was you I would get a cpu around the 70pound mark paired with a gtx1050ti. I myself have 1050ti and its much better than the 1050, I paired it with an intel pentium G4600 and theres no bottlenecking in gaming
To add onto your questions, search on youtube on how to build a gaming pc and pick a video you like the most lol, there's plenty of them.
Now for windows, you can go onto their official site and download windows for free, once the pc is build load it up to a usb stick and again follow a youtube guide on how to install it, the trick is that you will be using windows tats not 'activated' but aside from the barely visible prompt telling you to activate you will be able to use it as normal, been doing this since last year haha
Dont even worry about upgrading RAM 16gb is overkill, im pretty sure that mobo has 4 slots anyway so yes its upgradable.
oh that makes sense why they're so cheap, thanks !
I thought G2A sells legit discounted keys?
in UK and I assume everywhere else RAM prices have gone up a lot so you'll have to spend atleast 80 pounds, cheapest option I see is probably Patriot Viper Elite 8GB 2400 MHz DDR4 RAM
yes, Fractal Design - Focus G is a much better case since it has 3 preinstalled fans, dust filters and a nice design, if you really dont want to spend that extra 20 pounds then just get a general mid tower
Yes at 1920res it will run just fine if you dont crank up the settings too much. I myself am getting Asus - VS248HR 24.0" 1920x1080 60Hz Monitor, because its extremely good for its price
gtx 1050 is about 20pounds cheaper than the Ti, the performance impact is said to be about 13% so its a fair tradeoff, otherwise you wont get anything better value for money right now due to crypto mining