Can you please let me know how much material I would need to reapolster the 2 front and rear seats of a 1988 Porsche 944. I would like the stoff 944 celebration option 757 premium. I’ll be doing the seats as they were stock so only the tops of the front seats will be covered in this and the whole rear. Along with how much I need Can you also give me the total cost for material and shipping. Also do you know were I can get this in the US to make it a little easier on us both? Either wat thank you very much.