You could use
Wholly and
Grail. There is also
Carbonite, which is a modular questing addon. The link is to the main module and the other modules are listed on the page.
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Ahhhh, the vagueries of the aging mind. Wait.... What was I saying?
Carbonite <----- GitHub main module (Maps ONLY) download link. The other modules are also available on GitHub.
Carbonite-CLASSIC<----- GitHub link to Carbonite Classic. Thanks to ircdirk for this!