[CQ-Contest] SO2R antenna distance

[Dave LaBat]

Doing some basic planning. How far away would those of you operating 
SO2R consider the minimum distance between the main antenna (Force 12 C4 
at 60 feet) to a vertical? Are there any good resources on the web for 
this part of a SO2R? All the hits on google referred to software and 
inside the shack issues. I think I want to figure out if the antennas 
can be placed appropriately before I look at the inside issues. Thanks 
in advance Dave KØXH