I am building a modified Moravian workbench in which I am using a cast iron vise in where the vise will be imbedded into the bench top same as seen here:
If you look quickly towards the very end of this short video, you can see the vise attached and buried into the bench. This makes for a very compact vise meaning the vise does not protrude into the workflow area in front of the bench which in my small shop is an important consideration.
Currently, I have finished fabricating the legs and am about to glue-up the two base end assemblies.
I have a website and you can see the progress here: