[TowerTalk] Antenna Standoff arm

[Axel Serena]

Hi Friends:

I own a US Tower HDX 589 Crank Up tower with Coaxial Stand Off arms.

On top, I have a Optibeam 18-6 antenna.  I am planning to install a new
yagui at around 70-75 feest fixed to Europe or may be use a Ring Rotor.

Where I can find a good Fixed Standoff Arm for a small Yagui?.  I am going
to have problems with all the coaxial cables when lowering the tower?.

Thanks in advance for your advise.
Best Regards

Axel
EB3CW