My 2?:
I can buy the B40 w/Raduino for $59.? I'd consider $40-50 shipped a fair price, but interest is a lot less with advent of the ?B.
The frequency counter and other displays are redundant with the Raduino, so those would probably have to sell separately, probably for about ? of what they were new.
The pot and buck converter can be had by a bargain hunter for next to nothing from China, so probably not worth trying to get rid of them.
The cookie tin choice is a little personal, so you'd have to find someone who really took a fancy to it.
Consider adding pix to this thread and entertaining offers by email.
Arvo W0VRA