Cost to upholster front and rear seats

It's easy to do. I've done a complete Olds Cutlass, complete with new foam and the front bench on one of my Scamps. The key is that the vinyl needs to be warm, I did my seats in the den in the winter. I completely rebuilt the seat bottom - it's not rocket science. You also need to make sure that the foam is not broken down. You can always add more and use an electric bread knife to trim it. If you skip this step the vinyl will not be stretched tight enough over the frame.