@SDR - certainly possible as you’ll need to raise the anti-siphon device up to have enough room before the flow meter. Very similar to this post →
I’d use the male push on adapters mentioned in the referenced post in the 90 degree elbow and union with PVC Lock connectors to connect the PVC pipe to the flow meter.
I’m not sure if there are female connections on the inflow side at the valve and anti-siphon device to where one can do the same type of construction on the inflow side. Additionally, it was suggested to put a union on the left side so the entire upper unit could be easily removed.