I'm with you, $200 for the set of 4. The hardest part with the fronts was moving the track "feet" around for the best tucked under look and making the riser for the rear of the track.
And now you got me thinking on Changing my plans. Do you have any pics of how you gor those seats to fit in the rear??? My car has larger mini tubs and I think I'm gonna struggle with getting a bench back rest in the back . So the 2 bucket seat idea looks to be a better option?