One of the companies I contacted Fiesta Pools who constructed the pool. They only carry Hayward but it is the least expensive so far at $4600 including installation and electrical. It's rated the same as yours at 140,000 btus.
HeatPro Heat Pump | Heaters | In Ground Pool Heaters - Hayward Pool Products
I went to pinch-a-penny and the Aquacal was $2000 more without electrical.
Thoughts?