I really expect the shell on that kit to be clear.
OK the 53 circle is the only
paper that you will put on the inside with the paint job. It was printed on plain paper and then glued to the inside of the lexan with XXXmain picture glue. (They make RC products, but they like to make it sound like its pornographic) Here take a look at this. http://www.xxxmain.com/glue.shtml
You might be able to find something that serves the same purpose at your local hobby shop. Or you might find someone who can cut a vinyl mask out so you can paint the 53 instead of going the way I did.
Once more the 53 was laser printed on plain paper and then glued to the inside. The remaining stickers were applied to the outside after the paint job was finished and the overspray film was removed. The picture glue helps to keep the paint from soaking through, but just incase, make your first coat of spray paint very light and thin. Let it dry completely before you put on heavier coats of paint that way the thin coat will seal the paper and pervent the heavier coats of paint from soaking through.
In this shot You can see everything. On the inside the 53 was glued in first. then the stripes were painted in then the whole coat of white backs it all. On the outside you can see the VW, RSI, the vents in the rear valences and the tail lights are all external stickers.
I hope this helps.