Most destructible items will respawn, these would be a good thing to obtain cash from if not from selling objects to stores. Plus, who doesn't enjoy smashing mailboxes and tiny plants?
Thanks for the screenshots, irajacobs - based on the silhouette screenshots you put up here's what I was able to deduct.
For your weapon, it looks like you're missing the Dire Scepter, level 11. This is looted off the dead corpse of the Bishop in Canada.
You are also missing the Holy Mossad Knife, level 11. Can be found in the Banff General Store in Canada.
Outfit, you are missing Bishop Vestments set, level 12. All items can be found in the Banff General Store in Canada.
Hope this helps, let me know what you find!