after fail with searing one i m suggesting vivid one. actually this one seems bit higher

http://www.tf2outpost.com/trade/9187854 sold for harvest geezer + 40 ~ 3.5

http://www.tf2outpost.com/trade/9629716 sold for 3.5 pure (btw another 3.5 offer)

http://www.tf2outpost.com/trade/9833370 sold for 3 pure http://puu.sh/39D1k.png added new owner (who actually gave it to friend) to talk about this so credits for help

if you check offers there are lots in this range, I would put 3.5 flat but i can't considering trade for 3 pure

hope you wont find any sold for some shitty price like searing