Thanks to all. After my initial searches of 1500 fans your advice lead me to a Hayden 3711 thru 3713(black, red or yellow) on Amazon for $113. It is an exact fit and by looking at the number of blades and pitch it must be close to the original CFM. The CFM was one of my biggest concerns, then fit.
Installed and all is good now.
Thanks Everyone.
Larry