That's what I do. One penname for my serious work and Dieter for comedy and slice of life. Both have different patreon too.
I don't have any demons I fight with so I don't really care if people find out I'm two in one.
Tbh, it's sad to see someone value themselves and their poor son, not only materialistically, but in comparison to someone else, that being their neighbor of all people. You can already tell by that they're not the most literate.
No, it's not very original. Subversion of a trope/story or a Spin on it will never be very creative in fact. That said, go for it. I'm sure you can think up something more original as you revise and revise and revise endlessly. My ideas when I first started writing weren't very original, even...
I don't need one, but if you are asking for these stuff you should also show before-after examples of your line-edits. Points for clarity.
People might not take you seriously to begin with if you don't showcase your skills.
EDIT : I completely missed the 'I'll do it for free' part when I wrote...
Adding onto what @TsuruI_am_a_bot said, I would also advice you not to sell your soul either. Have some principles and write what you want to write and hope that others find what interests you interesting as well. Don't write for others, for the market. No one respects a shill, and what's the...