Hello! Thanks to everyone for all the responses; You really helped me figure out what I could use and afford. I ended up getting a EVGA GeForce RTX 3060 XC Gaming card...12G-P5-3657-KR, 12GB GDDR6, Dual-Fan, Metal Backplate - specs seem good and dimensions fit the box. Because of GPU prices I paid a bit more than MSRP, however I really need this computer/gpu for work and this card was in stock and in budget. Thanks again!
Hello, I got ahold of a used Aurora R11 with no GPU. I've read some specs that the length of the card can only be up to 276mm (10.5") Does anyone have a recommended video card that will fit?    
Aurora R11, recommended GPU