[TowerTalk] Will AlfaSpid rotator fit in US Tower?

[Alan NV8A]

As I read the specs of the US Tower HDX-555 I intend to buy and measure 
the AlfaSpid rotator I already have (purchased when I was thinking of a 
different tower), I am wondering whether the bracing on the top section 
of the tower will allow the AlfaSpid to be installed. It's not the 
diameter of the AlfaSpid that concerns me but the height: the AlfaSpid 
is very tall, and I'm wondering whether there will be room to get it 
between the braces and turn it into the right position.

Alan NV8A