HS Antennas
  Plans and the parts for adding copper foil type antennas can be purchased from RST Engineering.  The individual parts can also be purchased from Wicks Aircraft Supply.

The antennas below were added as a new builder.  In hindsight they should be bonded to the skins.  These will probably work but would be better if bonded to the skin.

Vor/Loc 1 antenna
Glide slope antenna        
Antennas put in place     
Close up of ferrite balun
In hindsight the antenna cables should exit off center by 2".
Quick connects added. 

If possible run long lengths cable to the panel and do not cut if able.  The fewer the breaks the better.