I recently completed a hybrid to drop-bar gravely-tourer conversion (longer post is in C&V) and worked out an inexpensive solid-stable front rack. It's something I saw on the web, though I did it a bit differently. After considerable searching on BF I haven't run across this option, so I thought I'd throw it out there for others..and their searches at some point.
Axiom low-riders with a fabricated hoop. They feel as stable as the Jandd "low front rack" I have on another bike.