>>6139793The slots in the forearms appear to be identical, so you should be good on the shield thing.
>>6139871The actual Pledge we use for clear coating is Pledge Floor Polish with Future Shine (name may vary slightly, but be sure you're getting polish). It's also good for tightening joints. You sure it's the look you want though? Pledge gives sort of a high-gloss shine, people commonly use it to dip clear winshields in to make them gleam. If you want a matte topcoat, which is the most commonly used for gunpla, I hear Testors matte spray is a decent cheap one.