71 Scamp 318 8 3/4 Original w/ buildsheet

The car looks really clean, if it was on the east coast it would sell easy.

The main problem I see with your add is the extremly poor photos that show no detail.
A couple of tips, do not take pictures in the sun light, buy a decent camera, they are cheap and know how to use it.
More photos of the interior, exterior, underside of the car.
Let any buyer know of any issues, you mentioned the seat, take a picture of it.
If somebody wants a close up of a specific area, there is a reason for it, they have either had a problem with the same area, or the car is know to have a problem in that area.
If the car is nice it will sell itself.