Spoiler Swap

I just saw the trans am spoilers on ebay i've been dying for this upgrade for a while now.
My question is do you guys think it is first possible...then would it look bad or ricerish if I adapted the trans am spoiler on top of the stock formula spoiler(the lower one)???
It might look original but i wanted to know if its possible and some opinions.
Otherwise I would cost me more but i could get the whole hatch and it would just look like a TA rear...
Opinions, and Suggestions Welcomed....

i tihnk if your gunna go with the t/a spoiler, lose the originaly one, stacking them would be original but i think it would start to look like one of those rice whale tails... IMO

lol... Yeah i was trying to imagine it but i couldnt thanx

Anyone else...

no stack, replace.