Here's a drawing that embodies my suggestion. I inserted your image, without regard to its size, and traced it to create the new components. While the proportions are about right, the overall scale is purely arbitrary.
Select any line segment and rotate it, and you'll see all the rest of the components following along.
To modify the design, first return everything to approximately its original configuration. Turn on the Layers that contain the component(s) to be modified (including the correspondng "Hidden" and "Dims" Layers). Press the F2 key to access the Variables palette. In the drawing, select the dimension to be modified, whereupon it will be highlighted in the Variables palette. Click in the Value box, type a new value, and press Enter. The drawing will update automatically. (I recommend making small changes, to lessen the chance of screwing things up.)