Thanks all for trying and Beefyman thanks alot saved me a lot of work , I may need one or two more not sure which i have and which are missing, had them all but lost a few after a hdd fail.
I was having fun with inkscape today and end up with gradient mask from back to front. You can use it to create simple 2 colored skins: create 2 layers in your graphics editor with 2 different colors and then you can (a) apply the mask to the top layer or (b) invert the mask and apply it to the top layer. The choice depends on what color you want to be on front and what on rear.