I spent some time creating the window mask for this project.
Here is how I went about it.

The first thing I do is give the body a good washing with a mild soap and water.

Then I rough cut each window shape until I had the look I wanted.
I held them in place and marked the location on the outside of the body. (you can cover the area to be marked with masking tape so when you remove the tape you remove the marks as well)
I then took all the shapes and traced them on a sheet of paper.
I then scanned that page and sent it to my CAD program to clean up the lines and curves.



Then I put as many as I could in a 8.5 X 11 area and did a test print on plain paper. I was able to create 4 sets of window mask on a sheet.


I then I cut a sheet of vinyl 8.5 X 11 and placed it so the ink would print on the back side of the vinyl.





I printed the mask sheet I created and cut a set of window mask from it. I then checked the size and shape of each window..



I placed each window and made a few marks on the outside of the body to help place them when I was ready to stick them in place.
The mask go on the inside of the body before painting and should be carefully removed before the paint cures.



Marking the window locations made placing each mask much easier and faster. Note that after I marked the location of the front and rear side windows I then cut them apart.




I will tape over the body pin holes and the body will be ready for paint.



Here I have removed the window mask.


When the paint cures I will add packing tape to protect the paint at the body pin locations.



Here it is before taping.


And here it is after taping. Now the body mounts will not rub through the body paint. Notice I also placed tape at the rear to protect the paint.



Here is a look after the body was mounted to a chassis.


I need to remove the black marker and it will be ready for some race decals.



Let me know if there is any part of this project I did not cover.