I might be able to do the same thing if I don’t find a new carpet. I’ll have to look at mine closer. It has aged to a light shade of brown if I remember right. Otherwise I think it’s in good shape. I didn’t realize it was reasonably easy to re-die it. It might be an option.
Mine has turned brown also. I have only ever done it with black but I don’t see why I couldn’t with this color as well. I think it is called SEM Flexible Coatings. It is not really a die as most people call it but when I used it on black carpet and several 70 Cutlass consoles it turned out very good. You could not tell it wasn’t original. I just hope they make it in the correct color, or at least close enough to be ok.
You might try contacting Harry Samuel in Michigan. He has NOS carpet sets. They are pricey, but they are exactly correct in color and fit. The cars with the automatic on the floor and the console have a two piece front carpet, whereas the automatics on the column and four speeds have a one piece front. The rear pieces are all the same.