Help valuing surplus parts 1965 912

[Nein-11]

Hi Guys,

After completing a stock take of parts for my new to me 1965 912, I have come across a few parts that will be surplus to my project.

A couple of these parts are a pair of seat bases and a pair of heater control boxes.

With some of the ridiculous prices posted for these parts on the web it is incredibly difficult to work out a fair price to list these for. Would love some guidance from the knowledgeable souls here.

Thanks in advance,
Nico.

[9er]

Not much value in the heater valves, maybe $50 each.
Seat bases likewise, IMO

[Nein-11]

Thanks for the info 9er! Will stick them on the shelf for now in that case.