Its not complicated but it is a bit tedious, assuming you have the apps and widget templates, icons in apex launcher settings choose 7x5 layout, then choose to hide the dock. Now open up UCCW and import all the widgets needed, customize them however you want (this is the tedious part). next is important chances are the uccw widgets wont align flush with the edges of the wallpaper, set the wallpaper you want on your homescreen, note the area where the wallpaper gets cropped by gallery, now put that wallpaper onto your pc, open up paint and create a solid black rectangle for the area were you will be placing the UCCWs once done transfer the modded wallpaper onto your phone and set the wallpaper, if done correctly it should look like its flush with the edges.
