If you want nice workbench then just install one of these:
http://classicwb.abime.net/index.htmI got it installed almost on all Amigas, they have everything you want and more, highly recommended.
Install on real Amigas is a little tricky, but it's worth it.
Actually, my A4000 hard drive is behaving badly when hot, lost everything, so at this moment I'm formating a new one. The next step is ClassicWB install.