This is what I have undertaken for a winter project. We picked this scanner up for 12$ on ebay to house all the components I intend on using. The internals will be scooped out and I'll 3D print a new cradle to hold a Raspberry PI and an RTL-SDR dongle(See last picture for that). I'll also have to cannibalize a set of PC speakers for the amp for the audio. More to come on this project.
Did I mention this radio actually works.