The fuel injection system is composed of the fuel inlet line, the injection rail, the electrical connector and the fuel injector. A pintle cap sits on the bottom of the injector inside the cylinder. Pintle caps can become cracked or deformed and sometimes must be replaced. Replacing the pintle cap on the fuel injector requires the dismantling of the fuel rail system to reach the part.
That estimate seems extremely high, but I'm sure that the actual costs will depend greatly on the local market situation and geology. Here in northern Maine, my well was around $9000.00 complete. This is a 275 ft. deep well drilled primarily in rock with bedrock being struck at approximately 35ft depth.
The most common method of well construction in the United States today is drilling, which requires a fairly complicated and expensive drill rig, usually mounted on a large truck. Drilled wells are typically 100'-400' deep but can be 1,000' or more. complete submersible system will cost about $5500. An 80 ft 2 well alone will cost around $1000. A deep well & pump system drilled 500-600 ft deep costs about $10,000.