Is a 1000va(600 watt output) UPS enough for my 2 GPU mining rig ?

Hi guys , hope you all are doing good

So I was thinking of getting an UPS coz we have frequent power outages here , so my budget isn't much , so I was checking the market and I came across a 1000va – 600 watt output UPS which is right up my budget alley , but I have a doubt whether it ll be suitable to my rig setup ?

My rig has a 700 watt Psu , has 2 GPUS and total power draw even at TDP is 590 watts. Am planning to add more atleast 4 more GPUS to the fold in the near future

So does the UPS support my rig ?, I mean it doesn't have to last 30-40 minutes in backup , just have to stay 5 -10 minutes long , so the system can shut itzelf down properly.

Moreover I see the power output as 300watts , so will this support my rig ?