It doesn't matter if it's unique and untradeable. You can still sell it. What you do is sell 1 spot for turn 1/2. At the end when the gear drops you just have everyone but the buyer pass and the buyer gets the gear. Turn 1 can be 7 manned pretty easily. Turn 2 isn't bad either if you have enough silences with a 7 man (2 pld's solves that problem). If we didn't still need some stuff from 1 and 2 I would consider selling those spots for a few million, but 500k... no way, I've seen titan runs go for 500k.
