Fair price for full QB set?

[USMarine101]

Just looking to see if there is any interest in a few full sets of queens beasts coins, I may be parting ways with. All 10 regular coins plus the collection coin all kept in cases from the day I received them. What would be a fair asking price as many of the early coins are difficult to find. 

[James32]

They have been selling on average here in the UK for £700 including completer coin (11 coins total with a display box)

So I'd imagine somewhere between $800/$850 would be achievable in the US.. maybe slightly more due to being non native coins.