たぶん => Maybe... N4
Speculation
ぶり => style; manner; way​ N1
たぶん => perhaps; probably N4
~このぶんでは => as affairs stand; judging from the present situation; as things are now N1
Trend
ことだし => Because...so... N2
Cause, reason
~としたことが => ~ surprised N1
Surprised
~ぶんには => If it's just within range...then N1
Scope
~ぶんには(~分には) => as long as ~ N1
~ぶん (だけ) => in proportion to; just as much as N1
Related, corresponding
ぶりに => for the first time in (period of time) N3
ことなしに => without doing something N1
としたところで/としたって/にしたところで/にしたって => Even if; Even supposing that ~ N1