Steamy Sack o' medic hat set at 15-22 a while ago and due for an update. Several for sale on Outpost, not all getting interest. One has a BO of 22 keys. Best offers are below. Most recent offers are below the upper range. Lower range is probably fine, but looks like it needs a tick down on the upper range. To the proofs!

http://www.tf2outpost.com/trade/8460855 (22 key BO)

Bubbles Larrikin Robin (16-19 keys)

Pink Dirty Summer Hat (13-14 keys) + Pink Villians Veil (1.5 keys) + Pink HazMat Headcase + Festive Medi-Gun (2-2.5 keys) + 2 keys = call it 19-20 keys total

http://www.tf2outpost.com/trade/8460537

15 keys

http://www.tf2outpost.com/trade/8407849

White BMOC = call it 14 keys

8 keys , 8 retired hats for all classes but scout (3 keys) , prussian (2 keys) and football (1.5 keys) are vintage. i could also add some hats and a clean siberian sophisticate (2 keys) = call it 18-19 keys total

http://www.tf2outpost.com/trade/6848296

Smoking Pug Lvl 42 (12-14 keys) with Halloween paint = call it 14-16 total mebbe?

White bills + 1 key + archimedes (2-2.5 keys) + black painted surgeons stalhelm (1.2 keys) = call it 14-15 keys total

25 keys in items (but offerer's backpack says no)

Bubbles Noir (month old offer) (19-23 keys)

Bubbles Goggles (month old offer) (17-21 keys)