I am not being a critical a$$hole, but I feel I should correct something. There is no thing as one wheel drive. An open differential will still apply power equally to both wheels, only when traction is lost will power go to the wheel that is unloaded the most. Millions of vehicles were built with open differentials, and will continue to be built that way. I see lots of people who actually believe that using an open diff will have them driving around with power at one wheel all the time. Keep going on your project, you have the will and the drive to get it done.