A few good polishes should bring the red back (I assumed the pink is faded red!). Slightly aging red cars fade in the sun due to a different chemical make-up than newer red shades (which were 'updated' to reduce fade) You should polish it once a month at least and to restore it you need to polish it maybe 3 / 4 times before it stays.
If you do want to paint them then even a bodyshop shouldn't give you 'massive bills'! Mirrors can be done DIY but would be a good idea to call up a body shop to do the spoiler. Good Luck with it!