After my last Master-Cleanse I was craving sour crout as well. I just ended up eating a whole bunch of it as my 1st meal. It was what my body said it wanted. Maybe as a counter reaction to all the Sugar from the MC. I had no problem with doing this and imagine you will be fine too. I often like to eat cabbage post fasting because it acts like a broom in the colon.
Could you send me your soup recipe with the crout? I just might crave it once I start eating again.
As for the fish I would seriously take it slow. Not to kill your sushi high but raw fish is filled with parasites particularly liver flukes. I would hold off from eating it for awhile and enjoy your body cleaned out.
Believe me I love sushi & ate it several days a week living in the tropics for many years but after learning about all those parasites I honestly haven't been able to stomache it. Depending on your level of concern for this kind of thing maybe it won't matter to you. If you want to learn more.... if I'm remembering correctly... there was some info on the humaworm website that has a forum here on curezone to find out the exact website.