Is anyone aware of a Bestop compatible tonneau cover?

Might sound funny, but I wouldn't always want the supertop up.

 

http://www.bestop.com/truck-tonneaus

 

I don't see how since the clamps attach to the track. The tonneau would have to go below the track if you wanted the bestop to be on and the tonneau closed at the same time. The only way I could see it working is if you somehow bolted down the Bestop rails to the top of the bed side rails which would eliminate the use of the clamps. This might be an interesting mod.

 

I think of it as a hoodie, and only use the tonneau when the top is down.
Maybe one that fits in the bed rails.