The guy who paid 370 sold for sale 1) which looks to be only ~300ish, however the whirly was flipped for ~250 in unusuals the next day https://backpack.tf/profiles/76561198177056801#!/compare/1592697600/1592956800 which makes me think that the reason he sold the crones for that offer was because he had a sale lined up for the whirly. While this sale is likely a high outlier, the seller realistically sold the crones for 250 + 50 + 100 = ~400

This supports the suggested range.

other whirly sale.

https://backpack.tf/profiles/76561197993987295#!/compare/1588896000/1590883200 probably 140 pure

The crones is not currently on the market, so this should be fine