On the airdog:

c9 hwnn ~37

https://backpack.tf/profiles/76561198082050096#!/compare/1503360000/1503446400

duped misty inspect, probably low but supports drop

https://backpack.tf/profiles/76561198119580410#!/compare/1503100800/1503187200

with aces ball for PE fancy fed; probs should be used for fed

https://backpack.tf/profiles/76561198115721685#!/compare/1501891200/1501977600

ooze sns, no other sales there, should be used for that

https://backpack.tf/profiles/76561197970191143#!/compare/1502064000/1502150400

your kissking sale

https://backpack.tf/profiles/76561198069198816#!/compare/1502668800/1502755200

http://www.tf2outpost.com/trade/29380618 BO 42, GBH bonk + 6 keys, caps

https://backpack.tf/profiles/76561197994697258#!/compare/1506384000/1506470400

PE merry + 2 ~40

https://backpack.tf/profiles/76561198087172601#!/compare/1502668800/1502755200

Quicksold for 35

https://backpack.tf/profiles/76561198334066390#!/compare/1505001600/1505088000

bulk ooz coon

https://backpack.tf/profiles/76561198087172601#!/compare/1502841600/1502928000

Airdog can be 37-42, and the sns can be updated to 40 with that.

As for this suggestion; your low end sale should actually be 3 keys higher as the billy and noble are in-date at 16.5 and 18 respectively, at which they should be taken (i.e a week old seller does not overrule an entire in-date suggestion). Coincidentally that makes the high end supported and the difference roundable here. Feel free to suggest the airdog and the sns though