[要「よう」]するに => A. In short/put simply, B N2
Adjectival, Descriptions
[必要「ひつよう」]はない => It is not necessary for A to be done N2
Needs, Requirements
ものの => Although A... N2
Contrast,Surprise
の => Question N5
Particles
ぐらいのものだ => Only A N1
(Not)only , (Not) even
の => A kind of question N3
Sentence Endings
たもの => Used to N3
Sentence Endings
の => Turn sentence into question N4
Sentence Endings
もの => Because of A N2
Reason, Result, Response
ので => Because A, since A N4
Cause and Effect
の[上「うえ」]では => As… N4
Situations and Experiences
ただ~のみだ => Only A N1
(Not)only , (Not) even