Looking for demodulators, and came across 2 offerings-

Not sure what a fair price is – seems high

HAL ST-8000 – seller asking $ 700.

He says it lights up but he cannot test it.

Dovetron MPC-1000R - Seller says he cannot test it.

It has multiple boards, and he cannot take off the panel to identify all the boards

It has a TSR-500, and a BBP-100

What’s a fair price for this ?

Which would be the better one to get, or are they both considered excellent ?

Opinions much appreciated

Fred   VE3WN