I found out hat was offered to Snapp3r and therefor no overpay needed, 103 keys it is.

On the last suggestion 8 buds was proved incorrect, Since another one has been unboxed there's another sale which is probably usable...

Sale:

http://www.tf2outpost.com/trade/25350840

http://i.imgur.com/L34sqkV.png - screenshot given to me by snapp3r

- Strange prof ks Powerjack (7 keys)

- Australium Sniper rifle(40 keys)

- x2 pink as hell (~2 keys)

- x3 white paint+x1 black paint (~10 keys)

- 20 keys

- Burning Dread Knot (23.5 keys)

Mini for s pro ks powerjack:

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Powerjack ~7 keys.

40+20+10+2+23.5+7=102.5 rounding up to 103 keys.