Here is some proof to help you out... https://steamuserimages-a.akamaihd.net/ugc/1764818972901919508/59B8C0A8C4CEC4CBE6544834BBAB5E8FC3AD7681/

Initial trade: https://steamuserimages-a.akamaihd.net/ugc/1764818972901903768/F385F93C06C724934E46C7B52167729DE55A1704/

https://backpack.tf/profiles/76561198140162979#!/compare/1608422400/1608854400

https://backpack.tf/profiles/76561198056793885#!/compare/1608422400/1608768000

Subatomic corona was held as collateral while I fulfilled the trade agreement

first installment: https://steamuserimages-a.akamaihd.net/ugc/1764818972901926498/BC56938BBDA326B01383F6E6AE09EA382025D14D/

https://backpack.tf/profiles/76561198056793885#!/compare/1610496000/1610668800

https://backpack.tf/profiles/76561198140162979#!/compare/1610496000/1610582400

100 keys + demonflame blokes (trilby was being held as collateral as kisses sold the corona for it on my behalf)

second installment:

https://imgur.com/a/ccAonB0

$484.5 USD at an agreed fee or 1.7 USD per key. 484.5/1.7 = 285

Final installment:

https://backpack.tf/item/7602282419

Let kisses keep the burning letch's led which he received as part of the corona australis sale on my behalf: https://backpack.tf/profiles/76561198285371555#!/compare/1609804800/1609891200

Buy orders at 32.5 keys

All in all sale should be 285 + 32.5 + demonflame bucket (in-date 205) + 100 = 622.5. Given letch was taken at buy orders and is likely higher, 625 should be fine. Hope this helps! Let me know if there is anything else you need.