Changed my mind

Assuming we're in the same place

(and taking it from the bar beginning on the G) My suggestion is:
1 (acc 1) 3 (appogg 23 )212 shift back to 1 on F# 2 3 , shift up to 1 for the Bb at beginning of next bar, and repeat throughout. I would then probably just extend the 3 for that final E natural.
What have you tried so far?