I agree with Mike. This won't be a quick drinker. Since you haven't added any sulfites to date, by the time it gets out of mlf, after all the riggers of stirring and racking, it will be due a dose of Kmeta. I just wouldn't risk not adjusting for sulfites, you have put lots of time and money into this wine.
I assume you are still in secondary and soon to move on to mlf. If that's the case, I noticed three of your carboys have quite a bit of head space, which is perfectly fine during secondary. Once mlf begins and thereafter, you will need to have each carboy topped off.
I know it is more bucks, but you might consider getting two 6 gallon carboys. That way during and after mlf you can top off two of those larger carboys, then fill two - 6 gallon carboys with the remainder leaving one large carboy empty. This way you won't have so much head space. Four larger carboys and two 6 gallon carboys (which are closer to 6.5 gallons each) should be just about right for the amount of wine you have.