Nasa & HarveyGee
Cessna agents in Miami advise:
1.The CAA kit is least expensive if ordered on new aircraft.We do not recommend getting it if it is not required. It will cost around US$30,000 after the fact & the pieces have to be ordered one at a time because there is no kit.
2.KGP 560 Terrain Avoidance Sytem US$21,525
Also interested to see of any changes in 14 seat approval/FAA