Just for the heck of it, here's a DB wall that I've created (still needs some tweaking) that is intended to be a starting point for a wall detail. I know it doesn't help you with your issue, but I figured I'd share it since it has to do with structural.
Well, anyways... here 'tis.
Good looking block, Matt. Ya'll dimension in model space, or do you make an exception for details, for the sake of automation? I'm setting up a library of details, and one of the kickers I'm dealing with is whether to show the dimensions in model space or not, for the sake of being able to paste the whole shebang, or just let the individual dimension it.
Basically my options are
1) Geometry in model space along with a separate DIM Style for blocks that I'd just use overrides to make it right (since each block is a singular special instance) and make it easy dragon droppings.
2) Geometry in model space, along with separate paper space block to paste in paper space... kind of a hassle, not very intuitive. Get's 'er done though, while following the singular dim style we set.
3) Geometry in model space and screw the dimensions, the user can do that them self. (not a very good thought for someone trying to automate processes)