ASW27 Trasponder Antenna Installation Inside Fuselage.

Hello, my intention is to fit a Transponder Antenna within my ASW27. I was

wondering does anyone know where on the ASW27 Fuselage is not Carbon
or Aramid(conductive) construction, which would allow internal fitting of
an
antenna such as a Dolba BD1, Dolba BD2, FUNKE DP1090-5 or similar?
Schleicher TM/TN 13 “installation of a PCB-transponder antenna in the
vertical tail� doesn’t give a drawing/photo/diagram and I have
requested
additional information from Zulu-Glasstek. If I were to install antenna
within
the vertical stabilizer (Dolba BD1), the coax cable length would be
considerable (6 to 7 metre) and routing-security could be an issue, using
Carlisle ECS P/N 311501 coax cable. However, if the nose (tip area) of the

fuselage was manufactured from GRP as maybe used on other carbon fibre
Schleicher fuselages, then I would endeavour to install antenna within this

area? I have 95% dismissed TM/TN 12, installation of external antenna
alongside undercarriage due to it being ugly and prone to damage. Any
information gladly received. Best regards Paul.