Anjora, unfortunately you can decide to spend $10k on a pre-pro and you still won't find what you're looking for. No one makes the product you described at any price. And it's doubtful anyone will do so anytime soon. I would not hold my breath to see DP (Display Port) on a pre-pro. It doesn't make any sense to do so since that standard has absolutely no traction in the theater space.

Room correction is a form of automation to manipulate settings that should be able to also be manually tweaked. You don't need that automation to achieve great results.

Honestly, the 978 sounds like a great product, easily besting, on paper, products from others costing 5x the price.