Sorry to say this, but you seem not have understood the problem. Read my reply to @2rosy.By weird adjustment I meant the "arsenal" you listed for your cc adjustment.
Of course you can turn it into spreads if that's what you want... As 2rosy stated above, you basically have a short put and you can easily spread it.
Just buy an otm put and you have a collar spread, which is like a bull put spread payoff.
As I said, this stuff has been covered plenty here and in books.
Imagine you already have a CoveredCall in your porfolio. Then the question is: can you extend it to a spread?
I hope it's now much clearer.
Ie. loss side capped.