Looks a decent step up from the fiesta. Would love a black car, but would take so much work for me to be happy with the finish!
Regards the rust - sorry, but I think you have no absolutely no hope. Marks on the wheelarch look like stone chips gone bad, and scuffing on the door sill will be rejected as 'wear & tear'.
I had a go at VW with my old mkiv & rust on a wheelarch, but their default is 'its not internal corrosion' / 'caused by a stone chip'. VW CS were even worse...utter robots...