Are you still using your Amiga with the 1.3 version of Kickstart, but would you prefer an updated version of Workbench with a long list of additional features, improvements, and other niceties? Old Blue Workbench is a Workbench replacement for Amigas running Kickstart 1.3 written by Mats Eirik Hansen. It adds a ton of features and improvements, such as enhanced menus in the Workbench 2.0 style, improved windows with things like lasso select, icon sorting, and more, and browser windows for navigating the filesystem. You can also add a dock with drag and drop support, launch applications at startup, define your own menus, and a whole lot more.
It’s free, and if I had an old Amiga I would love to try this out.

I have lots of old Amigas but won’t have time to try it out on a real one for a while, Ill take a look soon though (on UAE), Sounds like some very welcome improvements of you are needing 1.3 for compatibility reasons (or even just nostalgia).