Yeah, couldn't agree more especially with the front wing, last time I enquired I can get Genuine Right front MB Facelift wing for around £230 on my Trade A/c, which is what was fitted on the left side when I bought the car.
However, there is nothing wrong with my Bonnet or Bumper, but they are standard Facelift items, I just really like the look of that Fluted Bonnet and the Bumper with the Foglights ....
It would make the car stand out, but yeah, it will be me who is prepping and painting it, and it would end up binned if I couldn't get it all to fit correctly
Yeah, I fitted GRP Wings on my Triumph TR8 when I built it, they weren't too bad, but that was a long long while ago, there is much more

about these days
IDK, I'll make me mind up when the time comes

Like I said earlier, can always buy 'em and send 'em back if I don't like the quality