いまさらながら => Still ... now N3
Time
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
いささか => a bit N3
Evaluate
~たらさいご => If you do… negative result N1
Situation, case
いまさらのように => Now... again... N2
Time
さえ...たら => Just...is enough N3
Conditions (sufficient conditions)
さらに => furthermore; again; more and more ~ N3
Add
いまさら ... ところで => Now even if... no matter what... N2
Time
させて[頂「いただ」]きます/させてもらいます => Allow me to A N1
Miscellaneous
いっさいない => Not at all N2
Emphasize negative meaning
てください => please do N5
させてもらう => Allow me to do (favor) N4
Allow