Super appreciate the suggestions guys. I messed around with WinDrStat for awhile (even ebfore posting here) and couldn't get an output that I liked. Hadn't heard of treesize, I'll check it out. I ended up mentioning this problem to a computer programmer friend, and he whipped up a crawler early this evening.
I said to him: "I need a program where: I get the exe. I install it. I open the program. I choose the directory I want to have the program crawl. It does it's magic, and outputs an html file (or zoomable jpeg or even word doc) that I can save to my desktop. I send that file as an attachment to my dissertation committee. When they open it in browser/dl and open it, it opens what, to them, looks like a web page. In that web page, they will be able to click on any folder/subfolder, and it will expand all the way down to file level with the names of all my files in that directory. But they can't modify anything, and they shouldn't have to install any extra plugins, blah blah. These people are mostly old and don't get computers that well."
And he's like, two hours later, "Here you go bud. Let me know if you run into any problems." And it works like magic. Glorious.