You are not getting upscale regardless of what you want
You are not getting much upscale.
The ChromeBook general spec is controlled by Google so it is nailed down to run ChromeOS. Any chromebook you pick on the market will have at least 1366x768 with a decent screen (no 1024x600 market cripplware idiocies from the netbook age), 2 USB ports and at least one of them being v3, SD card slot capable of accepting high capacity cards, 16GB SSD and 2G RAM. Accer may be straying a bit to raise the spec to 4GB but that is as far as its "liberty" will go. Not any further until mothersip says so and mothersip will not say so because this means that you will keep your data locally instead of giving it to Google to monetize (by all means necessary).
In any case - if you need a Debia/Ubuntu in-flight typewriter that lasts across the transatlantic on one charge (sans takeoff, landing and meal times) any chromebook fits the bill. You can shrink the original ChromeOS without wiping it completely to 6GB leaving 10GB or so for an adult OS. Linux, xfce4 and libreoffice take a G more leaving you wih 9G for your mail and documents. For most people that is more than enough.