I can do this, but it might take a week or two as I'm busy rewriting the TCP/IP protocol at the moment. Note that this will be an expensive project - I estimate at least $800 to $900 by the time I'm finished. Thank you.
Building a OS is really a huge project if you are not starting with say ' a template ' like Linux. An OS like DOS which can do basic functions like boot up, read a disk , save - load a file takes 3-5 weeks, no gui , no mouse.