You can do the cable yourself very simple. You will need a BD9 serial and a stereo P2, a soldering iron and some 3way cable. Go to the FAQs area to get the pin connections.

Also you will need a PC with a serial input. I think you can copy and paste the codes. Also you can open the CCF file in a NG Editor and turn into a PCF and then import this file to the 9400 software.

And least but not last you can buy a used Philips Nino in e-bay and put the screen in the 5200.