I also raided my bits box, giving it a close combat head and a pair of Exodus Wars Edenite Reaper turrets as Vulcan Mega Bolters on the carapace. I'm still not sure what I'll be mounting on the right arm.
The new pose means that the feet are no longer flat on the base, so I built up a pile of rubble using pieces of cork to create a stable platform for the front foot. The rear foot is pinned to the base.
Click to embiggen.
