Are you referring to carrying someone through, let's say, Turn 1 for a chance at gear, and they pay for that run?

Would they pay for the run in general? Or just for the piece of gear IF it drops?

How much do you think you'd charge? (100k Turn 1 item, 200k Turn 2 item??)

I always had a good time doing GDKP runs in WoW, but this would be quite a different concept since we usually don't have "alt" characters we could do a second weekly run on.