Topband: Location of WF RX Antenna. Need Expert Advice

[Joe Giacobello, K2XX]

I am hoping to construct a Waller Flag RX antenna on a 56' Heights 
aluminum tower for 80 and 160M RX.  The ideal location from aesthetic, 
RF and maintenance-of-a-civil -family-climate standpoints is midway 
(150' separation) between two existing LM-470 towers now separated by 
about 300'.  One has a 4-element Steppir and a 13-element 2M yagi on it 
and the other a 2 element 30/40M quad.  Obviously, the WF would not be 
used simultaneously as the two existing antennas, and the Heights tower 
would be well grounded..  Am I asking for a round of battles of trying 
to mitigate interaction problems on either TX or RX on any of the bands 
involved?  Would an easy answer to my question be obtained from an EZNEC 
simulation, especially since I already have models of the two current 
antennas?

I suspect other people on this reflector have been here before.  I'd 
appreciate any practical advice.


Many thanks and 73,

Joe
K2XX