の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response
だ/です => to be N5
すえ => finally; after; following; at the end/ conclusion of N2
Progress
ただでさえ => ordinary; usual... also... N2
Description
させてください/させてもらえますか/させてもらえませんか => please let me do N3
いただきます => to receive N4
Benefit
だとすれば => in the case of N2
Deduce
さえ/にさえ/でさえ => Even N3
Not only, Not even
だす => A (suddenly) begins, To A out N4
Secondary Verb
といえば…ぐらいのことだ => speaking of... just... N2
Respectful, humble
~にたえる (耐える)    => bear doing ~ N1
さえ/でさえ => even; so much as; not even N3