Since the original mod is public domain, instead of simply using FDA's updated version separately, integrating it as an entire HUD Element (or at least wiring up the CVARs for it) would give another optional HUD Element to play with.
Ideally the CVARs already listed in the mod should stay the same so players don't have to reconfigure them in HHX. In fact, the existing menus can even stay, and a link to them can even be provided in the HUD Element Options submenu.
Since the original mod is public domain, instead of simply using FDA's updated version separately, integrating it as an entire HUD Element (or at least wiring up the CVARs for it) would give another optional HUD Element to play with.
Ideally the CVARs already listed in the mod should stay the same so players don't have to reconfigure them in HHX. In fact, the existing menus can even stay, and a link to them can even be provided in the HUD Element Options submenu.
hddons listing by FDA