Argue all you want but in truth Temari will get fodderized like this.
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She cant use her wind jutsu in that condition now can she?
In all honesty that would be nothing.
In part 1 Temari was capable of leveling a forest in the Sasuke retrival arc, part 2 her wind is capable of cutting metal(In which it did the Samurais armour in the Kage summit)
Plus doing what she did against the 3rd Raikage would destroy Hashirama.
Temari was able to summon Katamari a summon which cant be seen by the unaided eyes(as said in the description)
So Hashirama wouldnt be able to see her summoning attack him
And Katamari can end Hashirama with quick beheading dance.
She has the ability to lift off the ground as well.
Sorry but I see no way for Hashirama to win