I'd want to know the cost of such a project. I've done a few short nonfiction books but not included images because I was afraid they'd cost so much to produce that I'd have few buyers and it wasn't necessary for my books anyway. But with yours, yeah, I think you need those images. Of course, you could do it as an e-book and not have to worry about added cost.

Sorry I can't help you but if you get any info. on print books with images and cost, I'd love to hear it. Good luck.