imported it 100% and moved and combined with dozen of utxo bc1 (bech32) addresses trickle thru multiple lightening channel and doing massive coinjoin createrawtransaction on tor only bitcoincore node for even better privacy. Keep chips size between most common 0.008 - 0.064 btc to make things more difficult for chain analysis.

There should be an option to get bech32 privatekeys from chipmixer for privacy and lower fees (some 50%+ fewer satoshi paid when bitcoin network gets congested).  This should not be difficult, just need a bit of update with sufficient regression testing on the back office of chipmixing.

you can defeat chain analysis with very large pool of private key spread out randomly over period of several month (years in my case) and move it with huge coinjoins to obfusticate those transactions.  Affording this, however, to do this it isn't exactly cheap.