I didn't think I'd see a request for an AT-AT font, which is partly why I never made one. I have a massive amount of studio-quality AT-AT effects, and incorporated some of them into my Steampunk US font, but I've yet to make an AT-AT font. It is on my list of fonts to make, in a sub-list of high-quality vehicular fonts to make, but that list is at 100+ fonts...so it'll take some time before I get to it.
If I have some time to work on at AT-AT font, I'll let you know when I make progress. A disclaimer, though, I only make fonts for non-US boards, so it would not be a free font.
I look forward to it