Air compressor wise, yes, 3/8" rubber line with regulator.

Will this system pump further than the 25' distance you mentioned with the discharge hose? I need to get it across the pond and over the bank to discharge into the woods.

I do have a second, even larger V-twin compressor in my back building I could possibly put on a trailer and run with a generator and use with my other compressor in parallel.

The 300-400 CFM you want with the air compressor is at what PSI?

Thanks again for all your help.