I found a website that has images of the Academy boxing of the kit so that could be of some help. The images aren't great but it's something.
https://www.super-hobby.com/products/USN-SBD-2-Battle-of-Midway.html
A few years ago I built the SBD-5. I think I still have the instructions for it somewhere. If I can find them I'll scan them and email them to you. Hope this helps.