Similar to wiring
I used 1/4" poly tubing from Lowes Aviation and routed pitot through sub panel, down firewall with wiring, under the center tunnel, across the front of the center spar section with the brake line, then through the hole in center section to the wing root.
Also ran AOA from wing root through the snap bushing at front of seat ribs then under floor panels and baggage area to ADHARS behind baggage panel. If it was going to panel, I could have run it through wiring holes in center section near the tunnel. Just need enough radius turn to not kink tube, or use 90? fitting if you can find one.
Good luck