Tristan Vitali wrote: How do you not take on too much at once like this?
John Elliott wrote:The journey of a thousand miles begins with one step.
Peter Ellis wrote:That old stream bed may be a hugely useful discovery. Ere is a thread about Sepp Holzer creating springs by taking advantage of barrier layers and natural water flows. Your stream bed is a natural channel for your ground water to follow, if you can get it through your clay layers.
I strongly recommend looking at Sepp's work in this regard to see what you can apply on your property.