What is a source for the chrome trim to cover the edge of sheet metal panels?

I need a couple of feet of the split, flexible chrome edge bead to cover the ends of some sheet aluminum door panels I fabricated for my truck. Where do I find this stuff? (I usually see it when someone has cut a hole in their hood for a tunnel ram or blower.)

 

i think it's called "door edge guard"

 

Out here, you can get the stuff at PepBoys. For really thin stuff, I've used the stainless fender-welt and pulled the vinyl out. Would get pretty pricey, and it's a pain to work with.

 

Your local auto paint supply will have it.

 

C.R. Lawrence sells a quality rubber stuff not chrome though