I know someone is gonna bring it up but that's just 2 people making Ade's day
If it had n, ab, or both I would easily say 50+ and that could easily creep up to 100+ if it had both on an auction. Rarely see CRs with n/ab though so I could be wrong
Since it has dark though I would probably put it at 30-60+ judging by the past few auctions
Interest on these seems to be a hit or miss in terms of the number of bids
Yes you have to set an initial reserve that is essentially the lowest you would sell the item in the situation where there is only one bid. I would suggest a 25-30 res