My conduit showed up yesterday so first order of business was to get it installed. I ended up using a 1 3/8" unibit all the way through the 1 3/8" step to open up holes for the conduit. Once run, I used some E6000 in strategic places to keep the conduit from squirming around. I also got the baggage floors riveted in with the exception of the nutplates.
Baggage floors nearly complete.
Here you can see the conduit in the tail and fuselage.