I would aim for the tuner, I want to make a scanner radio out of one. Been looking out for one for a while now... wanting the philips uv916/918 tuner to digitally control via my 18f2550.
I would use the remote control and its receiver to program that scanner. Use the PIC to draw operating values on the screen, and use the audio stages to amplify the recovered audio.
(I don't know if your detector needs to be modified. In US, the analog sets use 'intercarrier' detectors for audio, which requires that a visual carrier be present.)
What Nigal said is true. Unless you need a resistor or diode for an un-spacific purupose. You can find other sources that will do a better job. Unless you want one they can look at thru a magnifine glass ? Now that's something !