I don't have the original box for it. Do I just bend the tubes so the card and the 140mm rad rest on the same plane and bubble wrap the shit out of it?
Never a good idea to bend/kink water cooling tubes. Can you find another box to ship it in? Local grocers/fast food locations will usually give away a box for free.
Where are you shipping this to? To an individual or business?
If I was in this situation I might call EVGA and ask them. I purchased the 970 FTW from them. If I had modified it(doesn't void warranty) so that it was water cooled and I needed to ship it that would be my first step.