I'd have to think Foster's natural size and reach advantages would be too much for any version of Marshall to overcome.
Marshall defeated some good light heavies, including Ezzard Charles. I don't think he's automatically doomed in this matchup.
The story with that is Charles went into the match with a hip injury. To show credence to that, Charles didn't fight for 9 months after this fight, and went on to beat Marshall twice by KO in 6 and 2 rounds.