First decent sized suggestion.

Sale 1-

https://marketplace.tf/items/30140;5;u88 ~ 203 keys

Sold for $399

Keys are currently $1.97

399/1.97 = 202.5 keys

Rounding to 203 keys

Sale 2-

https://backpack.tf/profiles/76561198261771051#!/compare/1512950400/1513296000 ~ ??

Guessing this sale was via PayPal or something else along them lines.

Sale 3-

https://backpack.tf/profiles/76561198119013032#!/compare/1513123200/1513209600

Sold with Blizzardy Storm Universal Translator (43) + Strange Grim Tweeter (5) for a Hellfire Master's Yellow Belt (227)

227 - 43 - 5 = 179

Mini on the belt-

https://backpack.tf/profiles/76561198267189538#!/compare/1512259200/1512345600 ~ 227

Sold for a TaW Brainiac Hairpiece (28) + DP Pencil Pusher (20) + OF Master's Yellow Belt (18) + CTFL Exquisite Rack (73) + Amaranthine Gridiron Guardian (21) + Misty Skull Timeless Topper (48) + '72 Second Rate Sorcery (19)

Mini for the pencil-

https://marketplace.tf/items/605;5;u60/Dead%20Presidents%20Pencil%20Pusher

Sold for $39.95

39.95/1.97 = 20.2

Rounding to 20 keys

Mini on the yellow belt-

https://backpack.tf/profiles/76561198301015840#!/compare/1512259200/1512345600 ~ 18.32 keys

Rounding to 18 keys

Mini for the rack

https://backpack.tf/profiles/76561198061419424#!/compare/1513900800/1513987200 ~ 73 keys

Mini for the brainiac- https://backpack.tf/profiles/76561198267189538#!/compare/1512950400/1513036800 ~ 28 keys

Sale 4-

https://backpack.tf/profiles/76561198033378852#!/compare/1512604800/1512691200 ~ 277 keys

Sold for a Phosphorous Dr's Dapper Topper (54) + Burning Flames Fancy Fedora (80) + Cloud 9 Merc's Mohawk (133)

Mini for fedora-

https://backpack.tf/profiles/76561198094365132#!/compare/1513123200/1513209600 ~ 80 keys

Also found this https://backpack.tf/profiles/76561198001052880#!/compare/1511136000/1511222400 ~?

All other sales are duped.

Mini for the mohawk-

Sale 1-

https://marketplace.tf/items/30413;5;u58

Sold for $184.99

184.99/1.97 = 93.9

Rounding to 94 keys

Sale is too old

Sale 2-

https://backpack.tf/profiles/76561198112279227#!/compare/1509494400/1509753600 ~ 133

Sold with a Ether Trail Prehistoric Pullover (150) + Burning Flames L'Inspecteur (56) + Arcana Specialized Killstreak Gridiron Guardian (32) for a duped It's A Secret To Everybody Soldier's Stash (371)

371-150-56-32 = 133 keys

Mini for the L'Inspecteur-

https://marketplace.tf/items/622;5;u13 ~ 56 keys

$110.88/1.97 = 56.2

Rounding to 56 keys

Mini for thhe gridiron-

The most recent sale for the spec KS gridiron-

https://backpack.tf/profiles/76561198060375373#!/compare/1507939200/1508112000 ~ Bulk

Non spec KS-

https://backpack.tf/profiles/76561198072811851#!/compare/1509667200/1509753600 ~ 32 keys

Sold for a cloud 9 swagmans (22) + 10 keys

Micro on swagmans

https://backpack.tf/profiles/76561198156255538#!/compare/1514246400/1514332800 ~ 22 keys

Sold for a Cloud 9 Tyrantium Helmet (19) + 3.16 keys worth of sweets

Micro for Cloud 9 Tyrantium Helmet

https://backpack.tf/profiles/76561198024925599#!/compare/1510876800/1511049600 ~ 19 keys

Mini for the duped stash

https://backpack.tf/profiles/76561198040330756#!/compare/1512691200/1512777600 ~ 371

Sold for a SBTWC Front Runner (221) + Darkblaze Caribbean Conqueror (Getting priced at 150)

Mini for the front runner-

https://backpack.tf/profiles/76561198060375373#!/compare/1512950400/1513036800 ~ 221

Sold for Frostbite Spook Specs (200) + Strange Classified Coif (3.3) + Strange Killstreak Festive Crusader's Crossbow (5.3) + Strange Killstreak Festive Medi Gun (11.4) + 1 key

Micro for specs-

Sale 1-

https://marketplace.tf/items/30390;5;u87 ~ 132

Sold for $259.99

259.99/1.97 = 131.9

Rounding to 132 keys

Looks a bit low

Sale 2-

https://backpack.tf/profiles/76561198057330477#!/compare/1513641600/1513728000 ~ 200

Sold with a Scorching Flames Stately Steel Toe (25) for a Frostbite Dappers (225)

225-25=200

Mini for Dappers

https://backpack.tf/profiles/76561198155545034#!/compare/1513468800/1513555200 ~ 225

Sold for a stormy storm view (175 (Getting priced up)) + 50 keys

Mini for the toe-

https://backpack.tf/profiles/76561198110834357#!/compare/1514073600/1514160000 ~ 25 pure

Mini for dappers

https://backpack.tf/profiles/76561198041219518#!/compare/1511308800/1512000000 ~ 54

Sold for a Isotope Mannana Peeled War Paint FT (11) + 10 keys + Disco Beat Down Black Watch (33)

11+10+33 = 54

A bit to low?

Micro for the warpaint-

https://backpack.tf/profiles/76561198123419120#!/compare/1509926400/1510012800 ~ 11 keys

No other sales I could find on the dappers.

Sale 4 is all over the place, with some mini's being outdated because of no recent sales. I would consider it an outlier.

We have 3 sales 179, 203 and 277

I am going with 179-203,

Rounding to 180-205

Considering 277 an outlier.

I have probably got a lot of things wrong, please correct me where I am wrong.

Thanks

~Pigeon