Agreed, Monta isn't a great fit here. He's not the shooter you want next to Rose, nor can he play within the offense. He has to have it be run through him.
Would he be the worst fit out there? Nope. But he's not a guy that I'd go all in for. The closest trade that I would do would be this:
CHI ---> Deng, Hamilton
MIL ---> Ellis, Moute
A deal where we get back another ++ defender in Moute, along with an offensive threat (both of which aren't long-term deals, Monta has an ETO after this year and Moute has three more years left on his deal) without breaking the bank (save $3M this year alone).
with room to add another player on the vet min