Hi, here's my first suggestion... I hope I don't screw it up, any help it's welcome.

I'm suggesting Searing Plasma Murderer's Motif value's.

I got mine with:

- Dead Presidents Hot Dogger (14 keys) https://backpack.tf/stats/Unusual/Hot%20Dogger/Tradable/Craftable/60

- Disco Beat Down Virtual Reality Headset (16 keys): https://backpack.tf/stats/Unusual/Virtual%20Reality%20Headset/Tradable/Craftable/62

- The Giger Counter (2 keys)

Total: 32

Proof: https://imgur.com/a/TKztwOn

But if we think that those are 3rd gen unusuals, the price drops, also, there's one in classifieds in 25 keys:

https://backpack.tf/classifieds?item=Murderer%27s%20Motif&quality=5&tradable=1&craftable=1&australium=-1&particle=15&killstreak_tier=0

Thank you.