I'm looking for an ignition harness cap for an UNSHIELDED ignition harness for my overhauled Bendix-Scintilla S4LN-21 magneto for my Continental C-85-12. I'm restoring my 1946 J-3 and want to preserve the unshielded ignition harness system configuration vs having to install a shielded ignition harness system (don't want to drill those holes in the top of the cylinder "eyebrows"). Any help, tips, or offers will be much appreciated. Thanks