[TowerTalk] coax entry

[Jeff KB2M]

 I'm building a new home that will have a full basement. I'm going to move
my shack into the basement and I'm looking for any ideas on how to bring in
all my antenna cable's. I have about 12 antennas total. Cable's will consist
of mostly RG-8, but two of the cables are hardline, one 1/2 inch, the other
5/8. The new house will be about 20 feet away from my tower.
 I was thinking of mounting  a grounded plate to the tower, and then attach
all of the cables. I would also mount lightning suppressers at that
location. I would then  run short 20 foot cables into the shack via a buried
conduit. What should I use for the conduit? Does mounting (and grounding)
all the antennas to the Tower make sense, or should I do this just outside
the house? Any and all input appreciated.
 

73 Jeff kb2m