Sony a7sII or Sony a7sII cages works on Sony Alpha 7s Mark 1?

[lucas paschoalick]

Hey guys I'm from a third world country where everything is super overpriced, I just bought my first camera, a used Sony a7s...

I'm looking for a cage to use with my camera, but the cages for Sony a7s are old and hard to find.

In Aliexpress a SmallRig for a7s is double the price of a cage for Sony a7sIII.

So I was wondering, anyone tried to put a cage from Sony a7s III or a7s II on and old a7s? 

I know the measures of this models are different, this is why I'm looking for someone who can share his experience.

Or maybe recommend a budget cage for Sony a7s.

Thank you guys very much for the attention.