what i had in plan is running about 20 machines, and in each machine install windows xp lite (95mb version) & aol desktop (proxy) to have different ip on each other, and run firefox on every machine, only need to have one window running in each machine 24/7. So i would only need to assign about 200Mb of ram to each machine. I dont need actually 20 machines is just an estimated, once i see the server is lagging i stop creating machines, and thought i could probably achieve this with and vps.
For example, if i buy a vps of 3Gb RAM and run 10 machines (200Mb) there would still be 1GB spare for the vps not to lag. So could this work o not?