Many of the companies that offer domain names for sale also have appraisal tools.The operation is easy. Just enter the name of your domain in the search bar and get a dollar value. You be surprised at the values that are shown. Some fancy names have very little value while some simple names are worth quite a bit. These values are determined by the frequency with which people search for them.
Here is a real live example of a small trade:
Some time ago i searched for (1)'survivalofanartist.com'with an intention to purchase. At the time it was not available and I bought (2)' survivalasanartist.com'. Years passed and it was on checking my domain listing through the appraisal tool I found out that the one I had purchased(2), had a value of $340 while the one I really wanted (1), was now available and had a value of $1128. I then purchased the one I wanted (1) for $12 and put the other one(2), up for sale.
What is the message ?
I tried the sites you mentioned but struggled to find a valuation section in all but one of them.
Will send you a PM on the off chance you can help. If not - no problem.
Cheers
Lawrence