I've been burning to ask this question for sometime and see if anyone would actually know about it.
There's so much diy going on around here these days.
Not that I beleive this could be diy'd completely or could it? doubt it... But maybe a potential kick starter project etc.
Some of us just still cant give up the search for that wanted and genuine vintage film look be it from the 80's 70's etc.
From my research it's is mostly the stock which can't be had now. Everything else such as lighting, cameras/lenses are still available.
Knowing this is probably a task for a small or big manufacture with the tools but would it even be possible to or is it just a dream and something to wait for in the future years of emulation software.