I just picked up a elite 9.
I didn't really look at it good when it showed up

My fault.
Now that I've looked alittle better this is what I found.
First, it shows 5.6 ohms.
The connections are very rusted at the terminal screws. I tried touching the tabs but still had 5.7/5.8 ohms.
Next I went to the tinsels but didn't get a good reading at all.
The tinsels feel almost brittle with rust.
There is a crack completely thru one of the mounting holes.
The cracked frame may or may not be a problem when mounted but the ohms worry me.
Would I be able to replace the tinsels and hardware to bring it back into spec ohms wise?
What would you do? Refund or fix it?
What might it cost to rebuild?
Thanks.