Been rather inactive in suggesting lately.

Classified ads at the time of posting:

Page 1 - http://m.imgur.com/G7trXoa

Page 2 - http://m.imgur.com/C1UoUOL

http://backpack.tf/stats/Unique/Treasure%20Hat/Tradable/Craftable

1*1.3 keys

1*1.38 keys

2*1.4 keys

3*1.45 keys

10*1.5 keys

Unsolds at 1.5 keys:

http://www.tf2outpost.com/trade/28230361 (~3 weeks)

http://www.tf2outpost.com/trade/28267884 (~1 week)

http://www.tf2outpost.com/trade/28272677 (~1 week)

Seller at 1 key and 6 refined (~1.3 keys):

http://www.tf2outpost.com/trade/28300306 (Young)

Seller at 1 key and 5 refined (~1.25 keys):

http://www.tf2outpost.com/trade/28301803 (Young)

This is all I could find on Outpost that are valid at the time of posting this suggestion.