UGH, sorry, the D607 was EoS. Sorry...
So, regarding the two antennas, at 25ft up, the difference between a 60d and 90d vertical plane won't matter much, the difference would be a matter of a few feet and functionally won't matter much, coupled with likely environmental multipath even less so.
So the main question you have to ask is do you need a horizontally wider, lower gain antenna or a more horizontally narrower, higher gain antenna?