Mikey wrote:
Balance woun't be the problem, Doug. The problem is that over that long a
run, the feedline will radiate, and become a major part of the antenna
system.

The reason that the feedline radiates *is* unbalanced currents.
If the currents can be balanced, the feedline will not radiate
appreciably assuming good engineering practices are followed.
--
73, Cecil, W5DXP