Thanks for the thoughts everyone. The original limited goal here is about breaking direct history of KYC coins (withdrawn from the CEX) on the public Bitcoin ledger.
In a world-wide crackdown situation I am not even sure a 5x mix coinjoin would be enough to stop a dedicated investigation given enough resources.
Is perfect the enemy of good? That said, a no-log alternative to FixedFloat and / or a self-custodial lightning wallet in the above situation would be even better than the original idea I proposed.
There is a lot of good info in @darthcoin guides.
This is why I put my coins in join market and leave them there for months. There's simply no way you could unwind dozens and dozens of coinjoins like that
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May The Bitcoin Be With You!
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