I'm selling my toolbox and tonneau cover in order to switch up to a diamondback tonneau.
SEC tool box, goes up to the bottom of the back window, and the bottom reaches to about 1" off of the plastic bedliner. Probably would have about 2" with a spray-on type bedliner. Tool box has three Yakima bicycle fork-mounts on the back for a pretty sweet bike setup. They are sealed and watertight. The box also has two anchor points bolted onto the front to replace the ones in the bed that are covered up by the box. Box has a lock with two keys, and there is a plastic sliding tool tray inside in the top.
The tonneau cover was custom cut to fit with this tool box on a 98 Taco xtra cab bed. There are 5 or 6 snaps that popped off, but it doesn't affect the tightness or fit of the tonneau cover. The frame of the cover clamps on pretty easily to the bed. In hot weather, it's easy to snap on and off. When it's freezing cold . . . good luck; you've gotta do it in stages to let it stretch out if you are taking it on and off in the wintertime.
The setup cost me about $1200 originally with the extra pieces on the box, custom cut, etc. Looking to get $165 OBO for the whole setup, or split it up.