I am strongly considering a tail stripe such as this. Not exactly sure how I will get the dimensions spot on. I know the Stallion stripe across the trunk deck looks similar. Still playing with the idea in my head.
I think it looks okay, maybe look better with a spoiler cant say I remember seeing a Maverick or Comet with a stripe like that. If you like the looks of it is the only thing that really matters though.
I bought a T-bird spoiler at P&P that is the right width, but is shaped like a boomerang. I need to straighten it out and make the ends come down sorta like a 69 GTO. Then again, I might come across a grabber spoiler and throw this one away.