I've been following along with heart aching. I've been in your situation and know the amount of work, worry, and aggravation you've been through trying to save a whole tankful of fish. In my case, I introduced velvet, brook & uronema with the addition of snails from Petco. You've been in good hands with the different Reefsquad members who have been supporting you through this mess. Just remember to quarantine any new CUC when you get situated again!
Good luck. We're all hanging in there with you, sending you our strength and well wishes through this difficult plague!