I highly recommend @oman to do the install of Xen Foro as well as styles and add ons. https://xenforo.com/community/threads/omans-xenforo-installation-upgrade-services.45948/
For styles I recommend @Russ from Pixel Exit www.pixelexit.com he has done custom styles for me and is very helpful. As...
When I took over my forum it was pretty easy the former owner wanted out. I kept the original domain but did do a slight name change and pointed the old name to the new name software upgrade, server upgrade and rebranding and new graphics. This would be a good chance you have to clean up and...