Coming along well, in the last bit now. As they say, "After you finish the first 90% of a project, you have to finish the other 90%." Did a bunch of polish on the tooltips today, so I don't rely on Wowhead to load `em. Had to handle randomly enchanted items, fun.
Addon pretty much done, got some void storage and guild bank info. To do a full export looks like this:
1) Visit the void storage NPC
2) Visit your guild bank, and click all your tabs
3) Open your personal bank, and leave the bank window open
4) Type /goblinventory
5) Copy the string to the clipboard
6) Paste it onto the website
7) Pick what you want to hide/show, and how many columns wide you view your bags/bank
You can skip steps 1, 2, and/or 3 where you don't need that info, but if you want that info, you need to do a little running around. I wish I could grab void/guild/bank info without having to visit NPCs but the game client doesn't ask the WoW server for that data unless you do that.
Web UI is close to done, I still need to let you mass-hide groups (so you don't have to click 98 times to hide a guild bank tab, for instance), and finish the final publishing piece that writes the XML to disk and gives you a static URL. Also need to cook up a couple export formats, but they can be released as needed.
edit Actually, I'll probably just remember guild/void/bank whenever they get opened, and save it in savedvariables so it persists across reloads. Well, I know what I'm doing tomorrow..