Formality of: おXなされてくださりませ

Question

What nuance would be given by this pattern, example:

お助けなされてくださりませ

Please help me

Answer 1

It sounds like pleading in a theatrical and archaic way. The same line is found in a historical play set in ancient China, published in 1925.

（宮女一）もし、お助けなされてくださりませ。
（張春）お身は誰ぢゃ。敵は已にうしろに迫った。ここらに迷うていては危いぞ。

https://dl.ndl.go.jp/pid/981972/1/113

Even as a theatrical phrase, the construction may be getting obsolete. お＿なされ and お＿くだされ are pretty much alive in the role language for historical play, though.

Answer 2

It sounds like someone is intentionally making a funny sentence by playing around with keigo. If you used it in a business setting, the listener would either laugh it off as a joke or feel offended.

• 助ける is closer to "rescue" rather than "lend a hand". It depends on the context, but unless you're really in danger (of losing your job, etc), the appropriate verb is 手伝う, 力を貸す, 助力する, etc.
• You are stacking honorific expressions too much, and くださりませ sounds like a samurai.

Answer 3

I have to point out that くださる conjugates to くださいます, not くださります. All those honorific verbs are like that ござる, なさる, etc. So it's wrong in that sense anyway.