Retry since Polar recommended to price it in buds so here it is.

1st real price suggestion, attempt 2 ;-)

(Attempt 1: http://backpack.tf/vote/id/548dd1cab88d88ec0b8b506b)

Recently bought this one (painted black) in exchange for a professional sniper kit (15-16 keys, http://www.tf2outpost.com/trade/24074484#latest)

Bought the Slough: http://i.imgur.com/7eo0lAe.jpg

Sale of Pro Sniper kits:

http://i.imgur.com/BVAKhMm.jpg

http://i.imgur.com/T4YA61q.jpg

I sold it for 1 bud (13-13.5) and 7 keys - http://www.tf2outpost.com/trade/24087837#p60660502

Also have had another trade offer for it for 16 keys and a 2+ key item.

Other sellers at Outpost are still unsold at 2 buds or higher: http://www.tf2outpost.com/search/233590031

And some sellers on Outpost. One has an offer of 15 keys pure http://www.tf2outpost.com/trade/24299051

Other has (rejected) an offer of a Terror-Watt Gentleman's Gatsby, backpack.tf: 1.4 buds (312.40 ref, 18.20 keys, $49.98) and is unsold after 3 months.

One is to new.

The Kill-a-Watt version is at 1-1.4 buds - http://backpack.tf/stats/Unusual/Crocleather%20Slouch/Tradable/Craftable/56

There is a Kill-a-watt on the market for, netto, 23 keys

Still can't find any other sales but in my opinion this price range is pretty decent, and a proven sale. Earlier attempts to get it sold at 26 failed.

Thanks for your attention