Resuggestion, thanks to Blaze for the info!

Sale 1:

https://backpack.tf/profiles/76561198113845124#!/compare/1550448000/1551052800

https://backpack.tf/profiles/76561198148511293#!/compare/1550966400/1551052800

Sold for Strange CH Pomp + ~24 keys in sweets

Nothing on Pomp, use there

Sale 2:

https://backpack.tf/profiles/76561198148511293#!/compare/1551052800/1551139200

https://backpack.tf/profiles/76561198338949704#!/compare/1551052800/1551139200

Sold for CH KE(154)

Sale 3:

https://backpack.tf/profiles/76561198338949704#!/compare/1551484800/1551657600

https://backpack.tf/profiles/76561198418740133#!/compare/1551571200/1551657600

Bulky

Sale 4:

https://backpack.tf/profiles/76561197994697258#!/compare/1550880000/1550966400

https://backpack.tf/profiles/76561198084758995#!/compare/1549843200/1550966400

Sold for P Fetti Rack(69) + Strange PE Brass Bucket + ~15 keys in sweets

Nothing on the Brass Bucket

Sale 5:

https://backpack.tf/profiles/76561198006544512#!/compare/1551398400/1551484800

https://backpack.tf/profiles/76561198084758995#!/compare/1551484800/1551571200

Sold for C9 TC + keys

Use there

Sale 6:

https://backpack.tf/profiles/76561198169939863#!/compare/1546473600/1546560000

https://backpack.tf/profiles/76561198042916563#!/compare/1546473600/1546560000

Sold for Duped Scorching Hallmark + HG Soldered

Hallmark Mini:

https://backpack.tf/profiles/76561198169939863#!/compare/1546560000/1546646400

https://backpack.tf/profiles/76561198410760897#!/compare/1546560000/1546646400

Sold for PE Coldsnap(117) + 16 keys

Taking 133 keys

Soldered Mini:

https://backpack.tf/suggestion/5c844c756780724d6d30366f

Suggestion for 52 keys

Total is 185 keys

Sale 7:

https://backpack.tf/profiles/76561198042916563#!/compare/1547164800/1547337600

https://backpack.tf/profiles/76561198037631433#!/compare/1547251200/1547337600

Sold for Beams Hunter

Use there

Sale 8:

https://backpack.tf/profiles/76561198037631433#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198298979151#!/compare/1545696000/1547337600

Untrace

Sale 9:

https://backpack.tf/profiles/76561198298979151#!/compare/1547337600/1547424000

https://backpack.tf/profiles/76561198040726528#!/compare/1547251200/1547337600

Sold with ABoE Lap + ABoE Arms Race + Blizzardy Grenadier + ~4 keys in sweets for Scorching Falkirk

Use there

Sale 10:

https://backpack.tf/profiles/76561198060379908#!/compare/1546128000/1546300800

https://backpack.tf/profiles/76561198018528305#!/compare/1546214400/1546300800

Sold with 75 keys for Scorching Rotation

Used there

Sale 11:

https://backpack.tf/profiles/76561198018528305#!/compare/1547510400/1547596800

https://backpack.tf/profiles/76561198057370159#!/compare/1547424000/1547510400

Sold for 102 keys

Sale 12, 13:

https://marketplace.tf/items/611;5;u9

$151.00 / $1.81 = 83.43 keys

$245.00 / $1.79 = 136.87 keys

Sale 14:

https://backpack.tf/profiles/76561198040726528#!/compare/1547510400/1547596800

https://backpack.tf/profiles/76561198114402400#!/compare/1547510400/1547596800

Sold with ABoE Arms Race + ABoE Lap + GE Fightin' + Blizzardy Grenadier ~3 keys in sweets for Scorching Woolen

Definitely a use there

Sale 15:

https://backpack.tf/profiles/76561198418740133#!/compare/1553817600/1553904000

https://backpack.tf/profiles/76561198174708907#!/compare/1553817600/1553904000

Lots of spells

Sale 16:

https://backpack.tf/profiles/76561198174708907#!/compare/1553904000/1553990400

https://backpack.tf/profiles/76561198418740133#!/compare/1553904000/1553990400

Bulky

Sale 17:

https://backpack.tf/profiles/76561198006544512#!/compare/1552521600/1552608000

https://backpack.tf/profiles/76561198091539797#!/compare/1552521600/1552608000

Bulk for G Pan

Sale 18:

https://backpack.tf/profiles/76561198091539797#!/compare/1552521600/1552608000

https://backpack.tf/profiles/76561197994697258#!/compare/1552521600/1552608000

Bulky QS?

Total sales @:

83.43, 102, 136.87, 154, 185 keys

Blaze’s Part:

155 seems high here given there are 2 sellers at 130 one being 24 days old and also there's a seller at 150 for 3 months now

i think 102-137 would be better here or rounded equivalents.

Rounding to 100 - 135 keys!