This alot cheaper than anywhere else Ive seen at $23.80 ( £17.00 ) ! Oh dear I just bought this through FSdream team for £24 Oh well you win some & you lose some ! here is the link https://www.fspilotshop.com/fsdreamteam-gsx-ground-services-for-fsx-p-5504.html
they say it works in P3Dv4 as well as FSX