hey, fixing the first sale and getting rough mini's for the chieftains and the mancer:

Classifieds: http://backpack.tf/classifieds?item=Bonk%20Boy&quality=5&tradable=1&craftable=1&australium=-1&particle=14&killstreak_tier=0

Screenshot(s) of Classifieds:

http://imgur.com/w5kH2Uz

<Sellers>

700 keys | http://backpack.tf/item/5073264401 | http://backpack.tf/u/76561198080253538 | Listed 2 days ago [Bumped]

Sold:

http://backpack.tf/profiles/76561198080253538#!/compare/1492560000/1492646400 - sold for Green Energy Tyrant's Helm + Circling Heart Bloke's Bucket Hat + duped Strange Blizzardy Storm Bonk Boy + Burning Flames Human Cannonball + Orbiting Fire Head Warmer + Disco Beat Down Rotation Sensation + Circling Heart Toy Tailor + Collector's Bootlegger + 10 keys = 585 keys

http://www.tf2outpost.com/trade/28839112

http://backpack.tf/profiles/76561197990935886#!/compare/1490140800/1490313600 - sold with 750 keys for Anti-Freeze Antlers = used to update the antlers

http://backpack.tf/profiles/76561198119013032#!/compare/1494028800/1494115200 - sold for Burning Flames Chieftain's Challenge + Searing Plasma Pyromancer's Mask + Green Energy Brotherhood of Arms = 700 keys b/o

Mini's:

duped Strange Blizzardy Storm Bonk Boy:

http://www.tf2outpost.com/trade/28885588

http://backpack.tf/profiles/76561198055847835#!/compare/1492646400/1492732800 - sold for 35 keys + sweets = 40 keys

Disco Beat Down Rotation Sensation:

http://backpack.tf/profiles/76561198107647131#!/compare/1491955200/1492041600 - sold for Cloud 9 Boxcar Bomber + 4 keys = 84 keys

Burning Flames Chieftain's Challenge:

http://backpack.tf/profiles/76561198119013032#!/compare/1491091200/1491177600 - sold for Searing Plasma Large Luchadore + Morning Glory Aviator Assassin = 136 keys

http://imgur.com/a/Ew6RB - b/o: 108 keys (1 week)

taking 108-136 keys

Searing Plasma Pyromancer's Mask:

http://backpack.tf/profiles/76561198011061869#!/compare/1493078400/1493164800 - bulk

http://backpack.tf/profiles/76561198051186164#!/compare/1490400000/1490486400

http://backpack.tf/profiles/76561198011061869#!/compare/1490400000/1490486400 - scm

http://backpack.tf/profiles/76561198096016032#!/compare/1488672000/1488844800

http://backpack.tf/profiles/76561198051186164#!/compare/1488758400/1488844800 - scm

http://www.tf2outpost.com/trade/28864314

http://backpack.tf/profiles/76561198079764636#!/compare/1491696000/1491782400

http://backpack.tf/profiles/76561198096389539#!/compare/1491696000/1491782400 - sold for Steaming Pyromancer's Mask + Cloud 9 Smoking Skid Lid = 74 keys b/o

https://marketplace.tf/items/316;5;u15 - b/o: $105 = 49 keys (8 days)

taking 49-74 keys (probably on the low-side but the chieftains is on the high-side so should even out nicely)

would 585-700 keys be an ok range? (not taking 49 flat for the mancer based on the marketplace.tf seller because there are buyers at 50+ for it in classies)