I am looking to build a sff system (around 12" deep.) I was going to do this build awhile back but was so difficult to find a graphics card that'd fit in a case that size I ended up getting a used optiplex 3010 sff; and it's worked fine for what I needed it to do--stream videos and basic browsing etc. But my child is getting a bit older and I like him to be able to play games out here; I set up Steam, went with goat simulator that he has familiarity with and it's great, so now need to upgrade to something with a graphics card, any suggestions for a decent budget build using a case that can lay flat on shelf and be about 12" deep? (the shelf is 16" so needs some space behind for plugs.) Thanks so much, I got frustrated before and for $75 figured the dell would hold me over until...well now.