Hi Tiger,
I purchased two 8” 1024x768 IPS HDMI screens from the Pishop.ca. They needed a plug, usb power cable, and the hdmi cable. I run them at 800x600 behind my MFDs they work perfect with RTT extraction.
I also purchased a round display from AliExpress for an RWR display. I used MDF board to make a bezel. Just make sure you order the screen and driver board.
Links listed below.
MFD
https://www.pishop.ca/product/hdmi-8-ips-lcd-screen-kit-1024x768/
RWR
Just found this amazing item on AliExpress. Check it out! C$29.79 20% Off | IPS 2.8 Inch TFT LCD Round Display ST7701S Driver IC SPI+RGB 40 PIN Interface 480*480 Screen HDMI-compatible Board Wisecoco
https://a.aliexpress.com/_m0UYfIK
The RWR is available with RTT extraction and you can set it so the grid is displayed too. Getting the RWR to display is in the same file you change to setup your MFD location, but you probably knew that.
I would recommend a simgears ICP and DED and your front panel will be looking good.
Hope this helps.