Sir,
As a user of a windows 10 device myself and a buyer of another windows 10 device for my wife, I can assure that it is nothing like a IT project. You can simply go to the store, pick up the phone, the store guy (or girl) will help you with initial steps of inserting your sim and SD card. In case you don't want to do it, you may even ask them about 'transfer my data' which will transfer your contacts and other relevant data, including SMS etc. onto your new phone. Just bring it home. Put it on charging, connect it to your wi-fi and let it do its bit in terms of OS and app updates. Only thing oyu need to do from your end is to log-in to Microsoft account for store and people hub, log in to Facebook, linkedin, iTunes, google accounts and link them to the people hub. select the outlook app and log in to your mail accounts. You may have to wait for a while as most apps will receive an update, but once you are through will all log-ins, just sit back, relax and enjoy.
Windows 10 is a treat to use and I simply love it. I have never face ANY issue highlighted in this forum. My only grudge is with groove music, but there are other far better options for that on the store.