Tandberg 3001, 3002, 3003

I was passed down a Tandeberg 3001-3003, basically Tuner, Preamp, and Amplifier in pristine condition.  I tried searching the internet for a reference price but I can't seem to find too much pricing on them.  They seem to be pretty rare  especially if you have all 3 components like I do.  Anyone know pricing on something like this?