The one thing you didn't mention, which is as important for MSFS as your PC specs: what is your Internet bandwidth, and is it data capped? You'll have a 100GB or so initial download, and ongoing realtime downloads if you want all the eye candy.
Also bear in mind that it's still effectively a public pay-for beta, even though MS don't admit it. And the patches are typical Microsoft, ie they break as much as they fix, so you need to have a chill mental attitude at times.