Hi Brendon, yes it has a struss rod, Godin make a few different multitrac guitars, some nylon some steel. You are right about nylon strings having less tension, but not sure if Godin has a different neck for the nylon "version".
Haven't been working on this monster for a while, ummm er still waiting for the paint to cure!
however I have taken the soft section off the machine heads, so, when I get keen again it's ready to go.
Tried to prise them off but needed to cut them off, but still good.