Pat you probably want to ignore the instructions given above...it's a habit I wouldn't want you to adopt (ever).
I'm not trolling or being a jerk on this, but it's pretty classless to tell someone to ignore other posters because they differ with your own advice.
CHSPACE is great for creating typical and reusable items that will be copy-pasta from drawing to drawing to drawing.
You're already taking your model and DISASSOCIATING your dimensioned drawings from them. You're not losing or gaining -anything- by leaving them in model space, so Huggy Bison ain't really got much purpose to his statement in regards to SOLVIEW/SOLDRAW geometry.
Your real model is the cluster of 3D objects you created 2d blocks from.
If I were you, I'd simply dimension the 3D objects, themselves through a paperspace viewport, and plot with the visual style 'Hidden' (note: not 3dHidden - there's a difference)
However, you asked about SOLVIEW/SOLDRAW specifically, so I didn't add that in before now. If you're going to have disassociated geometry created from a 3D Model and break the link between the two (there never was one, really) then it doesn't matter if you put it in model space, paper space, outer space... may as well put it where it's convenient.