ないものでもない/ないでもない => A is not completely impossible N1
Need/Requirements
というものではない => Not sure, not means N2
Information, Report
ぐらいのものだ => Only A N1
(Not)only , (Not) even
が[早「はや」]いか => As soon as A occurred, right after A N1
Time, Situation
ものの => Although A... N2
Contrast,Surprise
たいものだ => Want to A N2
Will, Decision, “Doing”
ので => Because A, since A N4
Cause and Effect
ても、~でも => Even if A N4
Conditional
までもない => It's not necessary for A N1
Need/Requirements
ないまでも => Even if A isn't done N1
(Not)only , (Not) even
の[上「うえ」]では => As… N4
Situations and Experiences
もの => Because of A N2
Reason, Result, Response