It will not get done for this MBBO, unfortunately. I have a 3-weeks lead time with my chrome shop, and I'm not close to being ready to tear it down for chrome. Once I do, I have a ton of "body work" and paint prep to do before any paint can be laid on. I just can't rush the process for a contest that's a lower priority than the quality of the build.
I have run cable through a frame. I generally don't because I like to have a vintage look from the era the bike is from, so I usually run full housing runs with housing clips. I toyed with the idea on this build to run the cable/housing through the fork leg to the drum brake, but decided to stick to the vintage look again.