If you really want to go for that old school, just replace your EF's with ZF's or Samyangs and set your cam to Tv or M
Nothing like an aperture ring and MF to bring back the nostalgia.
Maybe even push the boat out and fit a split prism / microprism ring focus screen.
Similar user experience, or is it all about the look?
To be fair, I am guilty of this, the only film cameras I would seriously consider buying these days would be an FM2 or FM3, a Contax G2, or a Minolta CLE. And mainly for the aesthtics of being seen using them, if I'm honest. I might get a fixie bike whilst I'm at it. And large rimmed glasses.