Littletimmy,
I think it is about 41 inches long. That makes it officially the longest model I have! IIRC my current largest kit is 39 inches (GP-03 Dendrobium). All the rest of my models are considerably smaller.
Now agonizing whether or not to wait for the resin interior kit or just make up a simple representative mock-up to fill that very clear window. Maybe I'll just while the time away assembling all those tiny modules and make a decision when all the sub-components are done.