Actually, Cherokee RV Salvage here in Denver has alot of miscellaneous refrigerator parts...and whole non functional refrigerators that may have the parts you are looking for in working condition.
Unfortunately, they are quite a drive from Thousand Oaks!
You may want to give them a call and see if they can help...they are pretty much a "do-it-yourself" type yard, so I don't know how they work long distance.
Here is a link to a previous thread regarding Cherokee RV Salvage
with contact information.