if they fought Kabuto in that cave then they would probably die.. however there are shadows all over that place
so Shikamaru could tame him with some help.. however they don't know anything about Sage mode so they would be killed . Kabuto could just shed his skin if he is caught in shadow jutsu , but while he is trying to do that Choji could be waiting to impale him.. Ino could take his mind , but she might have to worry about Oro's DNA (not leaning towards that) and not to mention Shikamaru has Asuma's chakra blades probably and they carry the jutsu of anything they touch.
So they stand some chance however its Kabuto's cave and he changes the landscape of it plus he has the sound genjutsu which Shikamaru and Choji have encountered before. It would be nice I think to watch that fight.
of course we aren't counting Edo Tensei as an option . This is replacing the Uchiha Bros. w/ Ino-Shika-Cho..
DSM Kabuto would win in the end. However his mind was completely hostile during his battle with Itachi & Sasuke.
He is an arrogant liar and at the same time a nervous wreck.. He is quite unstable.