You are lucky because you can afford so much motherboards and graphics...
I need to save for every peace of hardware.
I would like to have my motherboard and CPU R5E/i7-5820K and my memory, ( I would change nothing with that tree things)
than 980Ti Matrix/STRIX SOAR sound card, ASUS ROG 34 Curved Screen monitor and one nice G752 series laptop. I would use him when I go somewhere or for help when I play some games and need help with achievements, some thropy, secret, etc... Than I don't need to exit from game.