I got the remains on my own one day after logging back into Mt Collory in the Hib frontier. I don't think I would've been able to get it otherwise since AWE (Alb Wall Emain) is always blockaded. Camma made the potion that I needed to get it stuffed ^_^
Screenshot should be the numpad "-" button.
And sigs can be edited in "Your Control Panel" in the top left