Bathroom waste vent

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This is an update to an earlier question of mine.
I am building a cottage that is a challenge to vent; timber frame with SIPs and only one location for a vent in interior partitions. Maine which uses modified UPC. Local inspector has approved the use of AAVs for lav and kitchen sink.
Does this plan seem OK?
All on first floor:
Lav with AAV; 4' to toilet; 8.5' to shower which is vented to roof; 6' to kitchen sink with AAV; out to septic.
Main will be 3" - pitch 1/4" Lousy sketch below.
Thanks in advance
Cottage waste lines 2.png
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