Hi;
Maybe for the smaller beamwidth you can possibly try the new RF Elements Twin Horn Bracket. Seems like this may fit your request. The Cambium 60 degree is great in particular if you use LINKPlanner, since it will be in there for planning and seeing where and how your deployment may work. But if you need the narrower beamwidth, then the RF Elements new option may work for your application.
RF Element Twin Horn Bracket w/ ePMP 3000 mounted.
I think both parties give great support. So you should be well covered.