I bought 2 dozen of the clips at Office Max. And the other stuff (if it's the yellow/orange crud) at the auto parts store.
I'm gonna try the Dodge Dakota door thing next time....Sounds like more fun.
For me, the key is, "...a little at a time". "Do one door and do the other tomorrow".
YMMV, because we all want to get it all done at once, right?