Looks like water quality numbers are good. I would bury 3/4 or 1 inch inch black semi flexible pvc. Get it at Lowe's for about $15 per hundred. Put the compressor far enough away from the house not to be annoying, but close enough not have to run large wire(expensive). One 9 inch diffuser in the deepest part should work, or if you go with Vertex, 1 co-active setup. You will need a compressor that will deliver at least 1cfm at 10 psi. You will need 5 psi to overcome the water depth, and some for the length of air line and safety margin so as not to overwork the compressor.
Contact Sue Cruz who frequents this site and she can give you specs and a dealer in your area.