Were you happy with the products you received? How long did they take to come in?Finally finished! Had to do it in two steps since the parts came form two different suppliers.
1 - Popping the top trim clips from the metal. Noisy, managed to not break any clips and no scratches on paint. Right tools as OP suggested are a must!
2 - Popping de flat clips from the lower grill, really scared to break them. In the end it was a matter of wiggling a bit, they were somewhat stuck with dirt.
The two top screws on the lower grill really need a short Philips screwdriver, it was a pain to screw them back in without the right tool.
I am really pleased with the result! Needs a wash though
EDIT: Just realized how crappy my photos look, sorry!