If you’re looking for part numbers, the original oil filter part number on my car was a FoMoCo AA6E 6714 AA, however I now use a Mann W7015. I’m sure your air filter is fine after such a low mileage, the Mann filter equivalent is C16 134/2 or if you fancy an upgrade then the K&N filter E2993 is what you want.
The sump washer is a standard Ford rubber washer which you can get from any motor factors, just take your old one down and they can supply one from a Focus or Mondeo etc.
PM me if you need anything else as I have collected a few other part numbers since I got my GDI
Cheers and have fun
Ken