no recommendations as such, but 2kva seems very low? are you sure you have measured it correctly? for context, we currently have a 15 kva servo which supports upto 5 ACs (mostly 3 ACs running in parallel), and assorted lights/kitchen equipment etc.
One more thing, if your requirement is x, and if you are fine with a little wastage, get x+5 kva at a minimum, your future self would thank you, we personally are considering upgrading to 20kva
