The seats are 'handed', each leaning in a bit.
That said, I have switched them and used them that way for a spell -- when I had some upholstery work done on the drivers seat I mounted the passenger seat on the left so I could continue to drive. Did the switch in the parking lot of the upholstery shop.
It is not ideal though, the outer upper corner of the seat back may rub the quarter panel depending on how far bcak the seat is adjusted. Also looks a bit squirrely.
I considered having both seats covers undone and then switching the seats bottoms between d/s and p/s as the seat bottoms appeared to be nearly identical. This would involve considerable unstitching & restitching.
In the end my drivers side seat bottom split along a seam in a fashion that defied repair (and was failing in other places) so I reluctantly had the seat bottom replaced. Not an expensive operation labor-wise but I had to buy half a hide which is pricey.
Just looked at the pic... those seats are really fine, I assume that's the original leather as the look of original is very hard to recreate. Good luck with the grey carpet... mine (from TRF) has faded into a wierd orange color, most likely from exposure to UV (hard to avoid in a roadster).