So basically we have a KCSM Naruto and a weaker version of Legged Susanoo Sasuke vs. KCM Minato
and an Edo Itachi. The limitation on regeneration I assume means that the edos don't have infinite chakra.
Naruto and Sasuke respectively are of the same level if not slightly stronger than their opponents. However,
Naruto and Sasuke have a better tag team combination. I don't forsee either of them being able to land
a solid blow upon Minato, but Minato won't get the chance to injure either of them either. Legged Susanoo
should be able to overcome v4 Susanoo, even with Yata Mirror in play. If not, Cho Odama Rasenshuriken
+ Enton arrow should be strong enough to overcome v4.
However, Minato could tag Itachi and be able to teleport Itachi away from the combo. Thus, it'll end up
with them all stalemating for a while until Itachi can't keep up anymore since he has the least stamina out
of all of them.
At that point, Naruto and Sasuke close in on Minato, with Sasuke being able to destroy all of his marked kunai
with Amaterasu so Minato has nowhere to escape (assuming that an escape from the battlefield counts as a loss)
and they finish him.
If they have infinite chakra though, Minato and Itachi win.
By the way, in case anyone mentions this, Tsukiyomi is a non-factor as Sasuke can break through it as an EMS user without
suffering and Naruto has SM and KCM sensing which means that he can fight with his eyes closed. Should Naruto run
out of senjutsu, he just hops into susanoo with Sasuke and absorbs nature energy quickly again and jumps back out.