Mark Ingram for Miles Sanders + Mattison? (I own Cook)

I have Dalvin Cook and Jordan Howard on my team and was reaching out to the Mattison owner to see if I could get him. They initially turned down my offer of Jordan Howard for Mattison and proposed Miles Sanders + Mattison for my Mark Ingram.

I think there is upside on Sanders and would really like to have Dalvin’s handcuff, but I think Ingram is steep. Would like to hear some opinions.
Thanks!