This is pretty farfetched but we never really saw hash max potential. Edo form atleast cuts 30-70% of power of the resurrected body. Hash was surprised to being able to only summon 5 clones. While the 2nd summoned only 2... if hash can incresse that number by more than 3 hes already doubles his charka reserve a whole kage lvl.
Hash owned PS Kyubi SOLO'D amd eho knows hash probably got another fucken power up from the fight as did mandy. Rikudou madara is now all 9 beasts+sage mode + dual rinnigan. I think hash would have no problems stealing 4-5 beast from madara(obito did it so can the god of shinbio do it)
The only thing hash has no answer to ,are the trueseekers and limbo. And that is why hash will lose but it would still be mid diff. If MotherFing Guy(who is basically a normal human) can make god lvl mandy shit his pants i think the god of shinobis has the best chances.
Correction hash sage mode can probably deal with truthseekers