i recon they would look a bit dated yes.
as a nice substitute to recaros, motordrive make some cheap but awesome bucket seats.
the spacers are at different heights from inside to outside yes but they are the same thickness, its the subframes that are different so you can remove them no problem and not be wonky.
only downside is because the seat moves closer to the floor its sometimes a bit stiff to move back and forward due to touching the carpet. you just unbolt the 4 bolts under the car holding the seat in, lift the seat up just enough to get the spacers out then screw it back down, 10 minute job,