The 69 Trans Am wing will fit a Toyota Camry, but it's not correct. The seller is just trying to widen his audience, similar to how most of the repro parts houses that produce 67-69 Camaro parts say, "Also fits 67-69 Firebird".
I've seen a 69 T/A wing on a 68 Bird, and the wing tips hang over the quarter panels about 1". Looks like the wing was for a different car (which it was). I'm not sure if they make it any more, but they used to make a narrower Trans Am wing for the 67/68 Birds.
The repro 69 wing hasn't improved in quality since it was introduced in the late 1970's. Same mold, same quality problems. Original 69 Trans Am wings can be identified quite easily because they are 3-piece units. Just look under the wing, and if the area where the pedestals meet the wing are smooth, it's a repro. If it looks like the pedestals were separate, and bonded to the wing, it's an original. 69-71 Judge wings are similar.