The door handles on the SR5 & LE are chrome, not color matched so it is not something you will be able to order from the factory/dealer. For those you would need to get some OEM paint and have a local body shop or friend 'spray' them for you.
The mirrors on the abvoe 2 models are color matched, so if you really wanted to you could order them from the dealer and have them installed.....but if you are going to get OEM paint for the handles might as well just spray the mirrors when you do the handles if you want them all to match. It would be a lot less expensive than 2 new mirrors, uninstall, & reinstall!
I don't mind the chrome, but if I had a choice I would rather have the handles painted to match the body, sleeker & less interupted look when done that way.