nDisplay!! the best hardware config????

We are building a new nDisplay setup, we want to create the best! We worked for the “Cesare Cremonini-Ciao” video clip in green screen. we want to proceed with ledwall.
what is the best hardware configuration for ledwall, I mean video cards, processors etc. ledwall 12m x 5m 2.6 ???

You might want to ask on Facebook virtual production page