Been thought of before,check out ti. didn't go threw cause there's a chance you might destroy the oem surrounds,also big up roar in might destroying rare uk parts. People in the ukdm comunity got upset, but like everything else now days real parts will be replaced for cheaper crappy poor fitment parts. Even to mold them might cause the oem surrounds to crack. Cause they are rubber after all.
Oem surrounds sell for 350 to 400. I just sold a set for 379. They are discounited so value is priceless haha
Goodluck dood, you first half to source out real ones.