In regard to SMF, I would go so far as to say it is impractical to fully integrate into Dragonfly. Yes, you might build a bridge, like was done for Joomla, but what they call templating is very far removed from templating as we and many others know it.
Then there is the licensing issue that has resulted in Joomla (GPL) and SMF (a special non-GPL license) parting company.
You would be better trying to convert SMF et al forums to CPG-BB or ForumsPro.
Server specs (Server OS / Apache / MySQL / PHP / DragonflyCMS):
linux / apache 2.2.22 / mysqli 5.6.34 / 7.1.22 / 10.0.48.9418+