Guy Anchors on a flat concrete roof

[Richard Thorne - WB5M]

Since guy wires seems to be the topic today let me put this situation 
in front of the forum.

If you have been following my notes you know I'm going to put my tower
on top of our office roof which is concrete.  Luckily my tower and guy
points all fall on top of the main support structures.  I wonder if the
architect was a ham?

Anyways, I found a local supplier of Ramset concrete fastners that will
hold the base plate and guy anchors.

Heres my question.  Rohn specifies that the normal guy anchor should
be in line with the guy wires.  My problems is that I can only drill 
straight down into the concrete.  

        / <----- guy wire 
       / 
     O/ <------------ guy anchor (probably a forged eyebolt)
_____|_______ Roof
     |
     | <-------- Eyebolt surrounded by epoxy made for the job 


As you can see, the guy wire is going to want to bend the guy anchor.
But I can't see anyway around it.  The dealer did not suggest drilling
the hole at a 45 degree angle.

I am estimating that the eye bolt will only extend a few inches above
the roof so as to leave just enough room to install an equalizer plate.

Does anybody have any suggestions or do you think this will work fine?

73

(p.s.  need to get this done before the October contest season, HI)