ぐらいのものだ => Only A N1
(Not)only , (Not) even
~のは…ぐらいのものだ => only (emphasis) N1
Limit
くらい/ぐらい => approximately, about, almost N5
すぐにでも => right now N3
Short period of time
くらいなら/ぐらいなら => rather than (do …)​ N1
~ぐらい      => approximately; about; around; to the extent ~ N3
Level
くらい/ぐらい => approximately; about; around; to the extent ~ N3
くらいだ/ぐらいだ => Around/about N5
Amount
きらい => Hate... N5
Ability
もうすぐ => soon; shortly; before long; nearly; almost N4
Time
ぐらいならむしろ => If...then it would be better... N2
Cause, reason
すぐ => Right now N5
Short period of time