When sourcing a Cat 320c, the price is primarily driven by operating hours, maintenance history, and component condition. A fair market price usually reflects a balance between the engine's remaining lifespan and the hydraulic system's pressure stability. Buyers should prioritize units with less than 8,000 operating hours and request a video of the machine under load to check for black smoke or hydraulic leaks. On Made-in-China.com, you can compare multiple verified sellers to establish a baseline price for the current market.