Ken I may be wrong on this but it appears to me that both diagrams you show do the same thing except one is separated by 3 inches which may make a difference? One possibility I can think of is to run in a tube which could be continued up through the vertical fin or stab. To do so would require that you install tube, thread a line through tube before covering.Then using this line to bring antenna wire there when ready for it. assuming of course this is not an arf. Or better yet go Spectrum, no visible antenna.