[Test-Equipment] HP Probe Set For Sale

[Chuck]

I have a set of 1 ea. 545A Logic Probe, 1 ea.546A Logic Pulser, 1 ea. 
547A Current Tracer and 1ea. Logic Clip  with instruction/service manuals,
and the power clips in a HP pouch.
I know nothing about this set other than that.
My guess would be these are more of a collectors item.
Can anyone give me a realistic value for the set.
Is there a HP Yahoo group where it would be appropriate to list them? 
(other than Ebay)
Thanks,
Chuck