I totally understand. If I could, I'd shoot all my projects exclusively on film. However, that requires a lot more crew and money. At least here at school, we use Arri SR3s, which means you need at least a 3 man camera department, including an AC that actually knows how to load and pull focus without a monitor. I've only been on one actual 16mm shoot, and sadly it's hard to get a crew together that is experienced enough to pull it off. On that shoot, I served on-and-off as 1st AC, 2nd AC, gaffer, and somewhat of a DP (responsible for lighting, but not shot choice or framing or operating). At one point, I was running lenses, helping set lights, and meter all at once. Not really ideal, which makes 16mm a real pain in the ass for me personally. Props for being in the position to be able to pull off that kind of shoot consistently.
If you're looking for simplicity in a digital cinema camera though, you'll find it in the original Blackmagic. I've heard one DP relate it to the experience of shooting film because of the limited options in the menu. Personally, the limited options aren't a setback to me and I enjoy it for the same reason. When you take away all the finicky settings, you're left with the basic controls. ISO, WB, Shutter Angle. I don't like using electronic lenses (I may use older manual Nikon glass and Zeiss S16 primes for the short I'm shooting on the BMPCC), so my aperture control is usually on the lens. Taking away the menu options makes you think a lot more about how you're lighting the scene, just like film. Shooting on film taught me how to light without looking at an LCD screen. I really think there's only a few modern technologies besides the digital sensor that actually improve HOW you shoot, those being focus peaking and zebra, sometimes waveform, though I rarely use that as I prefer to use a light meter to read my exposure.
Also, I believe the BMPCC rents for $99 for a 3 day weekend, it might be cool to put it side by side with the Bolex for a shoot, even a few shots, and see how it stacks up. You may want to look at old PL mount lens rentals. I haven't done any tests with them yet, but I know a 10mm bolex c-mount lens will vignette on the BMPCC, but I expect that the 9.5mm Zeiss will cover the sensor. Putting the Aspheron on as well might be a bit of overkill though.