If your talking a "we buy gold" store front no more like a thief There are plenty of dealers i n DFW, take a few pieced to one of the shows and shop around and when you find someone you trust tell them what you have for sale and ask if their interested in the whole works
Watch your step. The "positive/negative/neutral" feedback views only show for the past year. You have to click on "All Feedback" to see older. Go back a few pages on this user's history, and you'll see quite a lot of four-figure sales.
If there is an active coin club in your area, try selling in their meeting auctions. If you are talking moderately priced material. I know one long time collector that has been slowly liquidating a collection this way over several years. Yes, it takes a while, but it produces an "income stream", kind of like a "coinnuity".
There is a coin show in Grapevine at the convention center Friday - Sunday. You might check it out. You need coins in hand (not just a list) for a good valuation.