I can't believe I just posted and ditched like that. Completely forgot I even asked for help
gonk
I was able to get WP set up, turns out my webhost had one-click install for it. I've been able to get some content migrated over, but I ran into an issue when setting up the navbar.
The theme I'm using is Migration Theme Master, which is basically a completely stripped-down, barebones theme. When you first install it and erase all of the "Welcome to Wordpress" junk that WP sets up for you, you literally have a blank page, like you uploaded a blank html document.
Now, when I try to set up my navbar, it's just a vertical link list -- no CSS applied whatsoever. What do I reference in my CSS to apply it?
If need be, I can set up the menu manually, but the idea is for the pastor or staff to be able to just log in and change things around, and there's no way they'll be able to figure out the code. It would be a small price to pay to have the rest of the site CMS-backed, but I know there's got to be a way to do it.