Hey, when do you need this? I’m in Trondheim, Norway, and have a Resolve system on a Mac Pro (only one GPU at the moment – more to come). I’ve got access to a 8m wide screen in a theatre with ~100 seats and a Christie CP2220 Projector. The projector must be fed with a Dual-Link 4:4:4 XYZ signal – which is applied as a Display LUT in Resolve. Essentially – what you see is what you get.
If you can, I’d suggest you consider renting or purchasing an Autocue monitor (or similar..). In my experience, when the monitor is set right – it comes really, really close to the experience of what you’ll see in terms of black levels and saturation in the theatre, so in the end it should only be minor adjustments.