I think you're being sarcastic, but I honestly can't. I recently bought a new workstation with a $3k budget, and I regret going with a laptop because the budget wasn't enough for me to get an adequate laptop that will still perform well in 3-5 years and get nice monitors.

I was being sarcastic, but also not taking into account currency conversion rates (and possibly the availability of stuff in your country)

Regardless of that, if all you're doing is General Business™ then surely all you need to do is grab an all-in-one box, shove as much 3rd party ram in it as will fit & then nab a couple of monitors and an unbranded mechanical keyboard off amazon.

I did a lot of work on a £700(~$900) Optiplex with 16gb of ram and that was more than capable of running ubuntu on 3 monitors while being small enough to fit into a handbag