Because of the prohibitive cost of original Recaro Sport Seats, I want to purchase a set of Vintage Seats "RS" seats for my 1970 911T. Now comes the questions. Could someone inform me as to the correct bolster and seat insert treatments for both vinyl and leather for that model year? I believe the vinyl would have perforated bolsters and basket weave inserts but I am unsure. I also believe the leather treatment would be just plain leather with no perferations etc.? Any information would be greatly appreciated. Thank you.