Dayton agricultural exhaust fans

I have 2 Dayton slat wall louvered exhaust fans, 3 Dayton box exhaust fans and 2 Dayton flush mount exhaust fans, all new never used, retail from 600-1200 ea. Models 44yu12, wdc7, 44yu10 and 1WDc4 in Carlsbad Ca. I’m asking 200-500 ea.