Acura rsx A-spec Vent trim replica Attempts

Looking to make a-spec replica vent trim parts to 3d print so that the world of Acura RSX and DC5 owners can have it for MUCH cheaper than 250.00 or more for a piece of plastic. Looking for any help i can get in making these parts. I can picture it in my head, I can shape it with clay, but when i go to draw it inventor isn't easy enough to just do it.