If you need to use strokeWidth with 3d wireframe, then you can use Processing 2D and simply project your 3d objects onto the screen with your own funtion.  Its not that hard, this is how we used to do it before openGL.  You just need to take object(x,y,z) and turn it into screen(x,y) for all the points in your object.

Here's a link that might help : http://en.wikipedia.org/wiki/3D_projection

Check the "simple version" at the end if you want to just try it without a math lesson, then go back and read it.