Congratulations on your new pride & joy.
Good luck with the fettling. A couple of points:
1) Wipers - they all do that sir - there are a number of threads on this site documenting potential improvements.
2) It should self park - a number of firms sell spares for the wiper motors. Car Builder Solutions
list a parking switch as well as complete motors and other parts.
3. Fuel Filler pipe Heart of England Morgans and Melvyn Rutter both sell these. Budget for a new set of knuckles.
4. Good idea
5. Heart of England Morgans list both standard and oversized hinge pins Here
depending on which you need.
No connection with any supplier - just a satisfied customer