Don't worry about that, each and every post that is discussed by the people in the US or any other country, and all the parts that they are using is pretty much available everywhere and its a good place to start. Try finding a good motherboard with 6 PCI-e slots, get the budget CPU which supports the socket of your motherboard, 4 gigs RAM, 32 GB USB Stick if you're going to use Linux or else 120 GB SSD for Windows 10. It might feel a bit daunting until you actually try it.