Yes they should be a standard ford wheel stud configuration, you will need to check wheel size Capri was a 13" if the Fiesta had a smaller diameter then you may need low profile tyres.
Ford cars use Mercon V transmission oil, not Dexron III or Mercon. A full change takes 13 quarts of transmission oil.
The fuel pump is situated in the fuel tank so this has to be removed.
check the tyres, it should tell you the size there - failing that check out halfords - they have an easy to use replacement parts "will fit" system. think mine were 13" but always best to check
about 13 quarts.
2010 ford escape
13 mm on my 2002 Ford Ranger 4.0 XLT
Fin de fiesta - 1960 is rated/received certificates of: Argentina:13
Mi fiesta de casamiento - 2006 is rated/received certificates of: Argentina:13
The owners manual doesn't require synthetic engine oil If your engine is sound , no oil leaks etc., and you don't mind the extra cost , it's up to you . I've been using synthetic oil in my 1995 Ford Explorer XLT for all most 13 years
Generally on that age of Fords it is a 13 mm wrench.
It is towards the rear of the oil pan. It takes a 13 mm wrench and is is accessed behind the left front wheel, passenger side.