Can't swear to this as I'm still waiting for my Ver 3 license. You are on the right path to get the vector lines as you illustrated using outline. Each dotted line would then become a vector and you can assign a V Bit (60 or 90 degree) and save the design. Since all are vector lines you should be able to size the whole thing to what you want.
Designer 2.007 will carve them as single lines centered on your pattern's lines at the single depth you specify and that will determine their width. With new Designer Ver 3 Vector Carving feature you would be able to click the individual groups or closed vector shapes and the bit will carve to the width and depth of that space or line. If the line or area exceeds the max carving diameter of your V Bit I think it will resort to following the outline of the vector shape but not do the center area that exceeds that diameter.
Again, others who have worked more with it will probably give you a more fact based answer.