yup, another one with 11 key in the range

http://www.tf2outpost.com/trade/9831274 b/o a bud, no offers in 2 weeks

http://www.tf2outpost.com/trade/10108353 b/o 1.33, no offers in 2 weeks (moved trade to here http://www.tf2outpost.com/trade/10289984)

http://www.tf2outpost.com/trade/8666993 only want other unusuals, got an offer of bills + sweets worth 4-6 keys (so at least 12 keys) rejected

http://www.tf2outpost.com/trade/9739498

sells 5 hats, no b/o on gym rat, got offered Bill's, 3 keys, Lumbricus Lid, Merc's pride scarf and sweets like refs and g. geisha boy for Gym Rat, so almost 15 in items, taking lowest value of all items (closed trade without selling)

http://www.tf2outpost.com/trade/10147298 gifted, not really interesting so

http://www.tf2outpost.com/trade/10023186 selling for 14, sold for 14

http://www.tf2outpost.com/trade/10109994 selling for other unusuals, nothing on gym rat (same seller as previous link)

http://www.tf2outpost.com/trade/10085089 best offer in 1 week is 11 keys

http://www.tf2outpost.com/trade/10035887 selling for 15, no serious offers (closed due to inactivity, still has it)

http://www.tf2outpost.com/trade/10024735 very rarily bumped, no offers (sold for unknown amount twice (b/o's were 14)

http://www.tf2outpost.com/trade/10397190

young trade, selling for 13 (too young to be valued as a non-quicksale)

http://www.tf2outpost.com/trade/10386355

looking for other unusual, no offers

http://www.tf2outpost.com/trade/10319179

no offers in 3 days

Soo, 12 keys is the minimum for an unusual, and 14 is a b/o here, and with offers coming close that will be my high end