GCX and a Ground Control Pro is the way to go, IMO. I looks like you have the same thing in the commander, but you are expanding the floor space with a bigger pedal board. With a GCX rack, you can keep all your pedals in a rack or shelve, where the knobs rarely get bumped and only have a ground control pro as a pedal board. But either way you go, You're putting all your pedals into isolated loops which is beyond better than chaining them together on a pedal board. Especially with Jerry's choice of pedals we all like to use. Trying to get that clean, straight to the fender tone with a chain of tone suckers can be challenging. I didn't realize how much was sucked out until I A/B'd the setup. Depending on what pedals,cables, buffer,etc.. your using, ymmv to some degree there.
But there is a good reason why lots of players use them, the really help your effects sound better and more consistent gig after gig. If you're planning to use a pedal board, the older school non-powered loopers would suffice, and they are cheaper. Although it is nice to be able to turn on two or three pedals with one stomp using the commander, but playing Jerry parts in Dead music, its rare for me to have to stack pedals anyway. I also never have to switch between amps either so one of those old school ones would work fine for me if I had to. Good luck with this endeavor, its well worth it in the end if you feel your effects set up could sound better.