Ok here are a few pictures..
Source of spring.



I installed this pipe just to be able to check the flow rate. It doesn't capture all the water but gets enough to check the flow.





Area where the raceway will be.





Should I leave this area in or get a greater drop into the raceway? It loses a bit of potential elevation about 2 feet, but the water travels over rocks and I'm sure it's getting aerated... It has that babbling brook sound. The issue is the vegetation near the spring has a tendency to grow over it and choke out the flow spreading it out and making it difficult to capture the flow. So keeping it clear will be an on going task.