If they're all homing in on one target, then Itachi's going to lose. Could you imagine Kakashi preparing Kamui while Itachi has to work to battle people like the original Ino-Shika-Cho team? Throw in all the clans in Konoha and the shinobi too. That's a lot, and Tsunade may join in as she'll hardly need to be involved with the healing.
Its the village against one man, and given that this one man has very low chakra reserves (2.5 out of 5)... he will undoubtedly lose. If he had more chakra, he stands a better shot, but will still lose. As an Edo Tensei he has the best chances as he can use Susanoo without its hindering drawbacks continuously while having limitless chakra.
Kakashi would be the real saviour here as his Kamui will be key in removing Itachi, whilst Konoha will try to hold Itachi in place to enable that to happen.
Kakashi probably will be able to make a large enough Kamui if he has medics around him continuously healing him. Now add in other beasts like a gated Gai.
However it really isn't Konoha, is it? You're excluding Naruto who is part of Konoha.