Trimming schedule - what would you do?

[Niphredil]

I have layers that I want to get rid off (most of them anyway) and hendigo colour that turned greenish from about shoulders down. Right now, my hair is touching BSL with layers starting at just above the shoulders. To get rid of everything at once, I would thus have to cut just above the shoulders, which I obviously won't do. But I do want to hold on to a sensible plan/schedule to remove the layers and colour. My hair is overal quite healthy, so actual damage (like dry or split ends, tangles or even matting) is not an issue here. Healthwise I could just continue to grow, but it is the shape and colour that I dislike.

My options are in the poll above, what would you do?
Or do you have another option ?

My next trim is scheduled around October 6th (MM lengthening) and that is when I want to start with the first trim. I want to trim every 3 months, whether that are micro-trims while growing, or larger trims when maintaining or going shorter.

Some more background information:
My ultimate goal is fairytaling at fingertip, but I do not need to get there ASAP. The growing and enjoying the benefits of different lengths are part of the journey.
I do like waist- and hiplength on me, but I am also very charmed by the pictures I have from 2003 when I was at APL with almost one-length hair. One-length/blunt hair is absolutely not my goal, I do want long layers to lighten my full/fluffy hemline. I cannot keep some of my current layers because of the colour.

So, how would you go about it ?

I set the poll to close at October 17th, as I will start my trimming schedule by then. Replies are welcome after that though!