Web Page help

Before I leap in and ruin years of work, I thought I'd ask for tips since my f-list is full of people who know more about everything than anyone else (true fact).

I have all my fanfic at www.janedavitt.com but I don't update it now, just archive at AO3. My pro writing page, which I do update and gets most traffic is an off-shoot of it, www.janedavitt.com/fiction.html.

I want to swap them over. I'm fine with renaming the fanfic page something else entirely, like www.janedavitt.com/fanfic.html but I want the simple janedavitt.com url for my pro writing.

How do I do it so that people with bookmarks don't get frustrated and how do I do it at all?

My thoughts are to open up the main page of each site and simply resave as whatever I want. So I'd open janedavitt.com, save as something or other, then open fiction.html and save as janedavitt.com.

That would put things in the right place, but a zillion bookmarks would need altering so I guess I'd redirect the url or something?

Meep. Scared! Suggestions? Thoughts?