I'm re-wiring my restoration-project Balboa 26 and in several places I need to run wires along bulkheads or on the curvilinear walls of the cabin shell. I'd like to hide them in (what on land is called) a chase - a rigid tube that can be fastened to a wall with adhesives or screws within which the wires can be run. However, the chases I can find are unable to handle the curving wall surface of a cabin. Any advice on sources? Thanks!