Rescue Squad building may not be the best location for a town weather station. Unless you can site it probably there could be some potential challenges or added costs.
The height of the building may be taller than most houses. Since you mentioned wind speeds are a concern then you'll want to be sure the anemometer is not blocked. Besides the weather station you'll need to consider mounting costs. If you put the anemometer on top of the building then you'll probably want to be sure it is a Davis VP2 so that you can separate the anemometer from the rain gauge and temp/hum sensor. Then though you may also need an extra anemometer transmitter because of the separation from the base transmitter.
Then the base sensor with rain, temp and humidity need to be far enough from the building, road or parking lot so that your rain, temperature and humidity aren't affected. Mounting the whole thing on top of the roof is not the best for temp/hum and rain. Don't forget about the trees too.
With all those challenges it may be cheaper to think about siting it elsewhere. I don't know your rescue squad building and it may not have any of the challenges I mentioned. I just wanted you to have these things in mind just incase there was a better location to consider. A different location may let you get away with using a cheaper all in one type hardware. Although your wind would then suffer. But a better location may have reduced siting costs.