Buying a PerkinElmer Optima 2100 DV, I need help

Hello, I'm planning to go check a non-working PE Optima 2100 DV, before purchase. My main concern is to know that, even it not working, the unit is complete. Has anyone pictures of the beast behind the panels? For instance, how can i check if the RF gen are present, the motherboards? the coolant controller, Argon controller? Any picture that would help me to check that unit are welcome! Thanks a lot