[ADXA] help to Model Antenna

[jim]

Hello all,
 I am looking for  some help  with  a  6m antenna  Quad

This antenna  is on 8ft boom 
And I want  to  put on  a 10ft boom.

Reason 
My quad  5 band  2el quad is on  10ft boom 
And this would work  better with my present setup
If I could take  this 6m info  for the 8ft boom 
And  place it on the 10ft boom..

Then I  would only have to add  2 el  and still use the 
End Elements  I have now 

I have all the measurements  for  
4el  8ft boom   6m quad 

e-mail  is 

mycall @  windstream.net 

Thanks for any Ideas

from the shack of
WB5AAA
73 de JIM