I agree. I do think Louis would beat Moore in a match because of weights. But if hypothetically they were in the same division, Moore would be the safer bet imo.
I just went through the NBA ratings to pick out heavyweights who fought Moore. There were 20 of them, and he beat several of them more than once. Here is the list. My only criteria is that they appeared in the NBA's heavyweight ratings, not if they were heavies when Moore fought them, or if he was. Alberto Lovell, Buddy Walker, Jimmy Bivins, Joey Maxim, Curtis Sheppard, Phil Muscato, Rusty Payne, Bob Baker, Frank Buford, Clarence Henry, Bob Dunlap, Nino Valdes, Bob Satterfield, Charley Norkus, Jimmy Slade, James J. Parker, Willi Besmanoff, Tony Anthony, Alejandro Lavorante, Roger Rischer