Pricing help on 90 gal, sump, and stand

[Steven91]

So i have a friend who is getting out of the hobby (somewhat long story) and am trying to help her sell the tank, stand, sump, and equipment. All the fish and coral have been claimed/removed so the pictures are of it wet from a few days ago.

Here is what I know:
Its a used 90 gal tank (holds water just fine)
Eshopps sump, am told its about 30 gals though i think it might be smaller
Aquatop return pump less than 6 months old
decent wooden stand
Believe korella wave makers, will have to check brand on them

I believe the tank has been up for about 2 years though most of the equipment seems to working as intended

How should I price this for her?

 

[dedragon]

does the tank have any scratches in the glass? Can you picture the stand and send the dimensions of it? Is it pressed wood or hard wood and does it have doors on it with non rusted hinges?
The tank itself is a deep blue(or now i guess seapora) 90 gallon from the looks of it so $500-600 new (some have it listed at $400 but not so sure about those sites), used is around half for a non scratched or very lightly scratched tank most of the time so 200-300$. Any major scratches on the front panel will immediately drop the price a lot. The eshopps sump is the r100 so it was $279 new but has now been discontinued. Anywhere around $160 is probably fair. The pumps look to be cheaper dc pumps like jebao or ac like korallia so probably $10 a piece.
Aquatop return pump is it dc or ac?