[TowerTalk] Best way to mount two LPDA on single mast

[Kevin Shea]

Hi,
 
I am putting up an 80' self supporting tower (AN Wireless HDD-80). I will be using 2" chrome moly mast with ~ 10 ft of mast above the top of the tower.  To this mast I am planning on mounting a 7-30Mhz, 14 element LPDA and above it approx. at the top (8' separation) a 50-1300 MHz LPDA both from Tennadyne.
 
While I have many questions the ones here I am seeking answers for are: 
 
Should I lift the antennas already mounted on the mast and lower the entire assembly into the tower and rotator, or should I have the mast already attached to the rotator and lift (by crane) the antennas and mount them to the mast?
 
If the second option  is the chosen method how do I attach the upper antenna (I am tall but not ten feet tall)?  Do I need to drill into the mast and place steps into it? 
 
Finally, are there any other approaches I should be considering?
 
Thanks! 

Kevin N9JKP
Madison, WI