Short update: I lost my oldest domain -- universalistchurch.net -- because I don't have the email addresses I used to register it years ago. I feared I might have to transition to universalistchristian.net, but lo! I got the original domain this week. Whew! (I transferred it to a new owner: me.)
Universalistchurch.net reads as universalistchristian.net now -- both addresses work -- and in time I hope to move the content to a simpler, faster platform. And maybe add more documents!