I thought Barcus Wroot, the Deep Gnome you rescue from goblins, would make a cool camp merchant. Perhaps he still will reappear later, would be odd not to see him again after the event.

The skeleton hanging around at your camp as a vendor is just too camp. All mystery surrounding him after he spookily rose from the crypt... gone. It's a freaking OOC convenience feature. And he doesn't sell anything that wasn't already available from other merchants or temples or whatever. Please, just rather put it in the difficulty settings that PC's can't die and remove this camp skeleton from the camp if you're planning to do something plot related with him. Casual undead characters belong in DOS rather than Forgotten Realms where undeath is a more serious concept. Maintain the mystery. I've never needed his services.