Nice work. An option for better performance than the 1050 ti would have been getting a second hand card, although not sure if your mate's brother insisted on having only new components. A used 290, 290X,

Dungeons & Dragons: Shadow over Mystara is my fav co-op, you can get it on MAME, not sure about other consoles. I think there's also an HD remake of it on modern systems. Well worth a look.