https://marketplace.tf/items/tf2/378;5;u33

September 30 - $60 = Quicksell

October 26 - $109.99 = 61 keys

https://backpack.tf/item/1685010503 The quicksell and the 61 key sale are both this compare link.

https://backpack.tf/profiles/76561198014468512#!/compare/1566086400/1566259200

https://backpack.tf/profiles/76561198342161127#!/compare/1566172800/1566259200

Sold for Scorching Grenadier's Softcap + Circling Hearts Tough Guy's Toque

The Softcap alone is updating to ~73 keys https://backpack.tf/suggestion/5dae849767807204741367ad

https://bot.tf/stats/listings/MLRL3Z9Z Caps at the buyout of 75 keys

https://backpack.tf/item/2266628218 Nothing but tradebacks

https://backpack.tf/item/769983085 No sales on this dupe

https://backpack.tf/item/772424119 No sales on this dupe

Sellers:

https://gyazo.com/f7cd2ee0d527304e95479497666f265f

https://backpack.tf/item/4247471933 65 keys

10/10 https://bot.tf/stats/listings/MQ9L83N3 65 keys

10/3 https://bot.tf/stats/listings/MGZGG32Z 65 keys

9/17 https://bot.tf/stats/listings/Y357K2LQ 65 keys

8/28 https://bot.tf/stats/listings/MGZ75J12 65 keys

8/20 https://bot.tf/stats/listings/4JGJJG9P 65 keys

8/15 https://bot.tf/stats/listings/MGZ58ZP3 65 keys

8/7 https://bot.tf/stats/listings/4RG0XX5E 65 keys

The 65 key seller was there almost the entire time, there were some links where the buyout went down presumably due to inactivity.

The 75 key sale is also almost three months old now, and the 65 key seller definitely shows the 75 keys was an outlier.

Going with 60 keys flat from the Marketplace sale.