Polar asked for 4.5-5 buds. Here, you go. Sorry that it was lazy copy & paste but you already know the range you wanted.

Sale #1

At the time of this sale(June 13th 2014) buds were priced at 16-16.5keys( http://backpack.tf/vote/id/53a495344dd7b8c56a8b49e9 )

It sold for 67 Keys Pure + 7-8keys in botkillers(It's 7-8 keys because you can't see what MK the Rocket Launcher Is ༼ つ ◕_◕ ༽つ )

Proof of trade: http://i.imgur.com/w7xnx3V.jpg?1

Calculation of Price: 67(keys paid) divided by 16(price of buds at the time of sale) = ~4.2 + 0.5(8keys in botkillers) = 4.7buds

Sale #2

This one took 1 month to sell.Got sold 5buds pure(Look at the last comment)!

http://www.tf2outpost.com/trade/19899939

Sale #3

This one sold for 3buds + 21keys to aud.Look at the 8th comment,you will eventually find his post.

http://www.tf2outpost.com/trade/20345477

3buds + 21keys = 4.3buds = ~4.5

Sale #4

It was DUPED.

Sale #5

http://www.tf2outpost.com/trade/21978349#latest - 97 keys

Sale # 6

http://www.tf2outpost.com/trade/21716382 http://www.tf2outpost.com/trade/21283338 - I bought this one for a vivid cowl+2 pure(5.4)