The Sofirn C01 is currently sold out and production is halted.
Buying one from a fellow BLF member is your best short term option.
However there are some relevant developments on the high-cri warm white 5mm LED flashlight front.
First, you might want to have a look a this thread: [1900k edition is in!] WTS: 1900k-5800k 5mm LED 95+ CRI
BLF member rngwn sells 5mm high-cri LEDs which seem to be at least as nice as the 3200K Yuji LED, although they are 3400K.
Djozz posted his measurements which look promising.
With these LED’s you can convert any 5mm LED flashlight relatively easily into a warm white high-cri one. This might be your best bet at this moment for a Do It Yourself project.
Second, there is also another thread where interest is collected for a Sofirn C01 host version without LED and potting, so people can add their own 5mm LED: Collecting interest for a Sofirn C01 host version
Currently interest seems stuck at around 100, which might not be enough to convince Sofirn to start a production run.
Finally, perhaps Sofirn could use the 5mm 3400K LEDs found by rngwn as a successor to the Yuji LEDs to make a new batch of the C01 flashlight?