Welcome to the club , Gert.
It is likely that your Prospect has Schaller pickups ( these would have two screws on each side of the pickup) , but posting a photo of your guitar may help us identify the pickups. If your pickup selector switch has a "dot " on the end of the plastic part ,then you have HRW pickups.
You are right that a good headstock repair is very strong and should not give you any problems.
Opinions about the hardware vary, it has certainly been discussed here before.
Enjoy your Prospect, those are great guitars.