You're just north of Los Angeles......there is probably more restaurant
supply stores there than anywhere else in the world.
Here is a Google link to some of the Restaurant supply stores there.
I'm sure you will find exactly what you are looking for at any of these
places. Prices should be good....and if it seems expensive; keep in mind
it is heavy duty restaurant quality equipment....and will last you forever
if you take care of it.
Just a thought...make a list of everything you can think of that you may
need....and take plenty of money....because you will find all kinds of
things that you never knew existed.
Plan on spending a couple of hours just walking around the store looking
at everything there. They will have the pan you are looking for...plus
deep ones, shallow ones, full pan, half pan, quarter pans, 1/8 pans,
round ones,....you name it...and you will see it.