合う => do something together N3
~からなる(成る)      => Consists of; formed to N2
~こと請け合い => I guarantee ... N1
Happens next
[合「あ」]う => To do A together/mutually N4
Secondary Verb
場合(は) => in the event of; in the case that ~ N4
~ににあわず (に似合わず ) => ~Different from N1
Evaluate
とはくらべ[物「もの」]にならない => It's no match for A N1
Comparison/ Exchange