I'll say that while I don't like the trucker-flap looks of the rally armors (goes better on the more utilitarian looking subarus), I also really don't like the fact that the OEM flaps cover paint on the side of the car. The rally armors disappear when looking at the car from the side.
I might pick up a set of the rally armors and try trimming them down to be more of a profile like the OEM flaps...
If you're going to buy them to cut them up, you might try doing what a lot of Subaru guys do. They buy the cheap flexible cutting boards from IKEA (don't know why they specifically like IKEA) and cut them to size, then install.
While I'm not sure how it would look, it might be a cheap "test run" to see how it looks before potentially blowing $150 on something you might not like.