Hamster (Springfield)

We wasn't told that two syrian hamsters can NOT be caged together.
We bought two girl twins from someone in dayton.
We are trying to rehome one.
They are almost 6 months old.
Cookie is her name.
She's the normal golden syrian hamster.
Very sweet and likes treats.
Asking $15 as a safety fee.
I'd like pictures of the cage she would be going in to.
Please be serious as I literally have a divider in my 55 gallon tank keeping them separate right now after fighting!