Complex sentence: It has continued the cautious approach to restoration, believing that to go further would involve too much guesswork and preferring to respect the ruined nature of the temple; one of its members has said, We're basically running a glorified maintenance program.
Split into simpler sentences: It has continued the cautious approach to restoration, believing that to go further would involve too much guesswork, and prefers to respect the ruined nature of the temple. One of its members has said, We're basically running a glorified maintenance program.