Sounds like a whole lot of effort for the same thing. Shooting on film i understand. Doing the editing and post work on film seems unnecessarily complicated, difficult, and expensive for a final result that would be nearly indistinguishable (again not talking about doing the initial shooting on film). Especially considering almost any place that would show your film would just show it digitally anyway. And you could still make prints of it anyway.
But then again I’m not speaking from a film enthusiasts perspective.