It turns out you have to draw everything with rectangles and ellipses that you stretch out and combine.
I made this worksheet to take to work. The U-Box shipping has a lot of components- the cross-country shipping, local shipping, and rent on the box plus insurance. I'll print some of these out and be able to give out a cohesive quote. This took two extended sessions of drawing rectangles and trying to get the proper rectangle in front. As someone who already put in my time learning to draw, this was excruciating.
I have found one easy trick so far. It turns clean pen and ink sketches into vector sketches. In the object menu, scroll down to Image Trace and then select "Make".