Okay thanks! let me share a link to the page APC UPS Selector/Calculator - Find the Correct Battery Backup
If it helps anyone else. The company is apparently one of the best.
They have a calculator for determining the right UPS. I was skeptical of a 3 hour UPS result. I did not add the compressor or ventilation but I will try the compressor ventilation, and laser into their calculator and try again.