I believe such a task would be beyond my soldering skills but more the concern would be Acer's lockdown on the BIOS - I don't think it would allow the upgrade to work to it's potential. I think I would look for the same basic model with that upgrade and see if; 1) it even exists and 2) that BIOS can be installed on your machine, 3) drivers can be found
Won't say impossible here but will say "tricky at best"