Doesn’t meet your power requirements (only up to 850VA) but i recommend Cyberpower Bric meets the rest. I have mine connected to my Proxmox host, usb passthrough to VM running Hassio with the NUT add-on. Neat little LCD and silent unless humming on battery. Can choose if you want an audible alarm.

APC still very well regarded UPS for small business, and your specs seems like they should be achievable across many leading brands. Have you looked into latest models for your spec?