Hey Rainman. For the river I was thinking 40 feet wide so I can hit 6 feet deep at 3:1.

Which parts in particular do you think will require the most planning ahead of time?

Also do you have particular good sources on air lift pumps that you have come across?This is the best article I have come across so far: https://wkrec.ca.uky.edu/files/airliftpumps.pdf