Workbench enclosed tail vise construction details
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Vise overall - looking down the bench.

And from the top. The hardware is Lee Valley, the shoulder vise screw.

Here is the jaw by itself. It is made up of nine pieces. Three mid pieces for the dog, two top pieces (one oak, one walnut), two cocobolo runners, two oak bases on the bottom. The two oak bases were eventally removed because they weren't needed and just complicated things.

From the end.

The vise disassembled. This is how it breaks apart to be installed.

This is what it looks like from the bottom installed. The bottom two oak runners ended up not being needed or practical. And, one of the two bolts for the hardware tore out. When I have it out again, I will fix that. Mechanically, the cocobolo slides run in rabbets cut in the apron and the bench, all of this is perfectly straight with the bench screw. There is no racking whatsoever, all the forces on the setup are directly in line with one another.
I did have to att a hole that allows the hardware retainer clip that attaches to the jaw to clear the bottom of the bench on the install.

Inside the vise, the hole for the hardware. It looks a bit ugly, but is pretty small and you have to look for it to find it. It does not interfere with the runners on the jaw.

The hardware half way in, showing the slot in use.

And in place, ready for action.

I have had the tail vise finished for probably three months to date, and used it to build most of the base. It works great and as expected. There is no binding, no racking and it can apply much more pressure than I'd ever need it to.