on a 737 3-900 one uses 15 degrees max bank when below V2 + 15 or Vref15 + 15 on a Go Around
single engine cleanup after take off is 400' minimum or as specified in the emergency turn procedure. Also cleanup occurs in level flight (i.e not turning) only. company SOP is to use a higher height as a minimum. Cleanup would be in level flight or a gentle climb depending on how much excess thrust is available
to cleanup after a go around single engine, one recalls that the missed approach obstacle area doesn't include a level segment, so if one is unable to make one's own terrain assesment, then one would maintain the flap setting until the go-around stop level, or some other suitable height