With experience, it isn't at all particularly difficult.
Looking at the links that you have found, the interface, on both of the panels, is listed as LVDS, so you would need an LVDS controller board, and an LVDS cable.
Then you might need to wire them up appropriately - see How do I configure the wires in the LVDS 30 pin cable? for an insight as to what would be required.
Once connected, you might need to configure the controller board to display images correctly on the panels.
A basic example showing how to connect an LVDS panel to a Pi is here, How to Connect Raspberry Pi to a Laptop LCD Panel via LVDS/LCD Controller Board.
Basically, make sure that the LVDS board that you buy comes with a cable that has a connector that will fit your display panel - otherwise you'll have to rewire it (as per the link I posted), which is best avoided if possible. Check that the number of pins on the connector of the cable is the same as the connector on your panel, and hopefully it should just be plug and play!
An example of making an incorrect initial purchase of an LVDS board is described here, Using a laptop screen as a monitor.