So, first check how much room you have at your PCI slot. IE, will you have 2 slots to utilize for room for the card. Most modern cards of decent performance will need that much room. The GPU will install level with that slot and take up room below it.
Second, you will likely need to swap your PSU for something in line with the recommends on your selected GPU.
That build should be serviceable for some 1080/medium gaming.