Export / rip / download Server's Wiki content

We've got a large Wiki that started back on 10.6 but is now running on 10.10's Wiki server. I'd dearly love to be able to export all the content from this to some other format. But, it's all stored in a Postgres database and any attempts I've made with various web ripping / downloading software have failed miserably (typically just getting the header info rather than the whole page). Yes, it would be nice to be able to actually export the whole thing to another Wiki package, but for now, I'd love to be able to take a snapshot of the Wiki as it is and have a set of HTML pages that could be saved, imported elsewhere, etc.

Anyone manage to extract the data? It's 99% text and links here I'm looking at, so even if the attachments were lost, I'd be happy enough.