Help needed: value of Yamaha & Heil ESS system

[Antonmb]

A dear friend, the wife of my best friend who passed away 20 years ago, is finally downsizing and selling off my buddy's old system. It's taken her this long to be able to part with some things, but she finally has to sell the old homestead. The equipment has been pretty much sitting idle for most of those 20 years, and I told her years ago not to just yard-sale anything before checking with me. The equipment is:

Yamaha CA-1010 amplifier
Yamaha CT-1010 tuner
Heil ESS AMT1 speakers
Realistic LAB 400 direct drive turntable

The speakers are in rough shape - woofer surrounds have rotted out and the grills are damaged, but the electronics look ok, just grungy and in need of cleaning and servicing. The amp works, at least I get good sound out of the A speaker terminals and the phono input, and all the lights come on. The tuner lights up but I haven't had a chance to test it yet.

I'm thinking of buying the amp from her, and maybe the tuner as well. They'd look and sound great in my workshop and would have a lot of fond memories attached to them.

So, can anyone give me an idea of what any of these might be worth? I want to give my friend a good price for the Yamaha gear, and good advice on what to do with the speakers and turntable, so any suggestions are welcome.

I know there are some Yamaha fans out there - Michael, are you there???