Doing a quick comparison:
AAm:
Awakening-Finding: 35VY = 335SY
Finding-March: 20VY = 192SY
March-Arrival in Aman: 28VY = 268SY
Arrival in Aman-Death of Trees: 362VY = 3469 SY
Arvegil:
Awakening-Finding: 865SY
Finding-March: 205SY
March-Arrival in Aman: 415SY
Arrival in Aman-Death of Trees: 1972SY
Huinesoron:
Awakening-Finding: 2016SY
Finding-March: 216SY
March-Arrival in Aman: 576SY
Arrival in Aman-Death of Trees: 2664SY
It's interesting that the Finding to the March stays roughly stable across all versions...
I think your version is going to run into problems if you start adding detail. The VII March timeline is 420 SY from leaving Cuivienen to reaching Beleriand; if you keep the "Noldor depart 1VY later", then you need to cut about 1VY out of the March somewhere. Given that the Rhun sojourn is used in other text (I think you posted them when talking about Cirdan), the best place would be in the 1.5VY they spent around the Isen.
Then you've got the whole Aman period, which needs to be practically cut in half. I just about got away with cutting the extra time out of the middle (ie between Finrod's birth and Melkor's unchaining, 958 SY in AAm vs 140 SY in my timeline). You couldn't do that: AAm Finrod is born 1600 SY after the arrival in Aman, which your version would place about 60 SY after the Silmarils were made!
So you'd have to decide what Tolkien would have shortened. Squeezing the genealogical parts of AAm down to about half their length would work; you end up with Finrod born in FA 2424, and Melkor unchained in FA 2546. That's probably the least disruptive to the story, because it maintains (as I did) the 910 SY from the unchaining of Melkor to the death of the Trees untouched.
hS
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