Image Description: The big squiggoth (without the howdah) is nearly the exact size of an ork trukk. The difference in the length here is due to perspective (which is why the front object appears longer). I think the big squiggoth would make a perfectly reasonable proxy for an ork trukk if you wanted, you'd just have to make the howdah removable so that you could easily determine LOS to and from the squiggoth.
