I need a camera set up to take pictures inside the cyclinder of a car engine. Before and after stills.?

I sell a product that cleans the inside of a car or truck engine. I would like to pull off the spark plug and be able toshine light into the cyclnder and a small rod with a camera lens on it so I can get pictures. I need to know what equipment i need to do this.

a borescope, spark plug wrench,camera