~の至り => extremely ~ N1
The highest (comparative) level
...はむりだ... => impossible N4
Description
のでは => if N3
Condition (hypothetical condition)
~なりに/~なりの      => suitable; in one's own way / style N1
~のは…ぐらいのものだ => only (emphasis) N1
Limit
限り(は)/限り(では) => as long as; while… is the case; as far as; while ~ N2
というのは => because N2
わりには => for, despite, although, unexpectedly N3
は~より => than; rather than; more than ~ N5
の+ [至「いた」]り => Very A N1
Degree/ Level/Amount
... というのは => It means... N3
Explain
... ばかりは => only, all except for this… N2
Order