I decided to order the Recaro Sport seats from THMotorsports. They were prompt, easy to deal with and included availability information along with their quote. Of course, their prices were competitive too.
The passenger seat has already arrived.
THMotorsports could have just sold me the Recaro sliders and mounting brackets which are not made specifically for installation into a first gen. Camaro.
Instead, they encouraged me to consider using the Corbeau sliders and mounting brackets since they will fit the Recaros and they are specifically designed for installation into first gen. Camaros. That's the kind of service that makes a person sure they are dealing with the right folks.
Here are some pics of the seat in case you are considering them. I couldn't find some of these views when I was researching them.
While I am happy with the seats, I will say that I am surprised that Recaro doesn't put more effort into making the seam down the side of the seat look better. Perhaps they should be using double stitching or something because as you can see in the following picture, the vertical seam down the side of the seat looks a little "amateurish" in my opinion. I think it should be nice a crisp without wrinkles and kinks.
Here is the Corbeau slider and mounting bracket assembly.
OK, that's probably overkill for seats but hey, one could argue they are the part of the car we experience the most right?