After you turn in the 2 parts of his amulet he respawns as a human. Once human then you can turn in his Unwavering sword of faith and his Unwavering shield of faith for more exp, he then tells you something along the lines of " Thank you it has been so long since these hands have held there weapons. At this point he is still targetable (red to 63rd) but you cannot attack him by any means that i saw.
The sword drops every time off the Undead footman .. uncommon spawn in west camp southern most static spawn in building.
The shield drops off Lieutenant Junis Bolarin a fairly uncommon spawn he is the middle of the 3 spawns in Eastern most skelly house.
I have also seen the sword drop off the diseased footman (southern most static in east camp) and the shield off of a Skeletal Guardian (not even on illias) that is uncommon spawn in north skelly camp (static on south wall).