This is the best I can do in the time that I have. It does need cleaned up a little, mostly just the scales. I touched up the rest. To let others know how I did this, this is one way to vectorize this: Since this drawing was so small, I had to open jpeg in Microsoft Paint, and zoom in really close and blurry, and trace around drawing with black thin line. That gave me a pretty good outline to take into GIMP editor program. I then erased all the red lines using color select and deleting. At this point, I had a single black contour line. Saved that picture and then took it into WinTOPO and vectorized it. Wintopo freeware is a good program for being free, but does not handle arcs very well, that I noticed. I may someday have to tweak the settings a little to get better arcs. Then took it to vector program, which Tops is what I use, and deleted some lines and put arcs in its place. The less lines there are and more arcs, the smaller the post will be when running machine.
I hope this works for you, Conquest