On my Advanced Flight EFIS, in-wing ports are no longer supported so when I upgraded I had to abandon them in favor of a pitot-based AoA. I then had to run the tubing for the AoA and did so through the corrugated conduit that had been run in the wing when it was built. There's no stall-warning on my plane, only AoA and I vastly prefer it.
If you have no such conduit and you're going to run the tubing unsecured in a rib-hole, you could use a fiberglass fish-tape
. That worked really well for me. If you can't access through an inspection panel, maybe you can remove the wingtip.
RV-9A, 2011, bought flying
IO-320D1A (factory new), C/S
AFS 5400/3500, G5, IFD440 navigator,
bunch of other stuff