The displays are just generic screens with CAN bus control switches, so they are about the same cost as a nice tablet. You'd have to get a quote from them for the software to build the display for your custom install. That's probably where they make their money. I have seen this technology used in experimental airplanes using small ARM computers to control the displays. These have the computer built in to the display and connect to whatever data source you have for the engine sensors. That's usually just a CAN bus controller. They make some really cool switch panels that are already set up for automotive controls, such as lights, wipers, fans and radios... I would love to build an instrument panel with one of their 10 inch displays!