The Gripping Beast Vikings also have a two-handed weapon on the sprue (Dane axe), so that will allow you to build two templars (pagan templars, why not).
Adding axe blades to a spear shaft is a very simple way to create more - the large one-handed axe from the Dark Age sprue does the job well. Made most of these Dark Age Warriors into Dane axe wielding maniacs this way - generally drilling out the left hand and resculpting it, pinning on the axe blade (sometimes upside down, as this shape appears historically too). Given a helmet, they could pass as Infantrymen for Frostgrave; otherwise the Fireforge guys can probably be made to do something similar.


By the way, 6 x 15 would be 90 figures - and I just realised you are missing the barbarians as two-handed weapon wielding guys. Something like the above could possibly pass as those, as they have no armour?