What is an Egripment Unit 85 worth?

[sines]

I randomly found two for sale within 100 miles of one another; with one responsive seller demanding $1200 in poor condition seen below (rusted chrome/patina throughout) and the non-responsive seller asking $500 in great condition.

I already have a Matthews Doorway Dolly (no seat, bazooka, or turret) that I seldom use, but think this would be a decent dolly if JL Fisher are not in my budget.

Photos attached.

[sines]

Here's the other one in good/great condition.

Edited June 23, 2022 by sines

[sines]

Anyone? ??‍♂️Beuller?