Ask in the DIY section, since it's a DIY speaker that's where you'll find guys who own them. You'll also have a lot better results if your location is shown in your profile, no one is going to want to ship those monsters.
I am new to the site but have 2 DTS 10s that were built in Atlanta. I have pictures of them in the Sarasota Craigslist if you want to see them. They are painted in Red Barn Glossy to match my stand. They are in great shape and sound terrific. I recently switched my mains to Magnepan 3.6 and I need the extra space behind them to balance the midbass. Im pretty firm on the price at $2200.
I am using a Peavey CS 1000 to power them. It too is in good shape and am looking for $395 for it.