Although I am no fan of Shively lower power products, but have also been very pleasantly surprised with a 4 bay VersaTune that a Class A client had installed purely because it was all the tower would support.
For a full power station, I would stay away from the Nicom, Bext, OMB, etc and go with ERI or Dielectric or even SWR. I think that you will really be pushing some of the small antenna's with that amount of per/bay power.
I always advocate for a pattern study if the station can afford it. I can't count the number of FM antenna's that I have found that were mounted in the singularly worst place that could be found. Replacing the antenna AND positioning it according to a reputable pattern study has improved coverage in almost every case.