... おぼえはない => don't remember... N3
Position, perspective
~のぼる  => To increase N2
Reach level
まず...だろう/ ...まい => Surely... N2
Speculation
てもよろしい => You can… N4
Allow
頃 (ころ/ごろ) => around; about; when N4
いずれにしろ => anyhow; anyway; either ... N2
Confirm
てもよろしい => also possible, potential N4
Ability
てもよろしい => It's okay (Concession) N4
Concession
いまごろになって => Only now ... N3
Time
というところだ/といったところだ => at the most; no more than​; at best; roughl N1
... だろうが、... だろうが => Whether it's ... or ... N3
Demonstrate by example
ところを/ところに/ところへ => Right on time/At the right time N2