Estate Sale Equipment pricing info sought

[K1FI]

I am a club treasurer who is selling off the equipment of an SK former member of our club.

Bill was a collector, who had a lot of rigs, several of which are easy to get historical price info on for valuation purposes.

Some of his other rigs do not have as much price history available.

Here's the equipment I am looking for pricing guidance for.
Kenwood TS-850S
Kenwood Twins-R599D/T599D (I've got three pairs of them!)
Ten Tec Paragon II
Ten Tec Orion

Henry 2KD Classic Amplifier
Dentron MLA-2500B Amplifier
Dentron MT-3000A Tuner

Thanks, and 73,
Terry Martin
K1FI

[K1FI]

Hello all, I sold the Paragon II for $600, but a still waiting for pricing help with the other rigs.

Any educated guesses anyone?