Signal lights on mirror brackets question...

[Supermario]

Hey all , Doing a major customize to my wife's truck . ( as seen on S&M trucking thread ) and she wants the 379 Pete with round front headlights and the turn signals on the mirror bracket like the orange Pete has in the pics.
I got an idea to hide the wires by using shrink tubing. I want to shrink tube the entire mirror bracket and feed wires through the lower bracket arm. I need some help with what to do for a light? I think the current fender lights are too big. Been looking at Rics signal lights not sure if size is right? Any suggestions of where to get lights and best way to mount?
Thanks guys, any help is appreciated.

Mario