Topband: 2 "EWE's"

[allan1 dejazzd.com]

 I am looking to put up 2 EWE antennas so as to be bi-<BR>> directional. Does anyone have any thoughts as to whether they should be co-linear (what separation) or side by side (what 
separation)?  Does it make a difference if I use the 160 EWE or the 160/80 EWE?

Also do I have to do anything differently if I top feed the "EWE's" which would be more conducive for running the coax and much appreciated by my wife?
Thank you
 Allan W2TN