The HD Extreme 3D+ is the best with the possible exception of the more expensive 4K Extreme, which seems like overkill for your purposes.
If you used a projector for color purposes, I imagine you'd do so while having all the lights in the room off. If you have a need to keep the lights up while trying to be color critical, then a plasma would be preferable. Some of the consumer plasmas (panasonic VT25, for example) are pretty good, especially if the colorist is working off a 10-bit reference LCD.
I'm not too sure about audio, but you can always get a SDI > Analog Audio disembedder going straight to powered speakers. Resolve allows you to offset audio to compensate if you find you're having audio delay issues (I haven't encountered that).
Cheers,
KC
Prehistoric Digital