Or AmigaSYS4:
http://www.amigasys.ultimateamiga.co.uk/amiga.htmlI have an 030 system setup in 64 colours under this and it looks really good. AmigaSYS for Amiga has not been updated for 4 years, but I like it (with personal tweaks and upgrades).
To build an Amiga Workbench from scratch is time consuming, so choose a package such as ClassicWB or AmigaSYS and personalise it from there. That's what I'll do from now on. The easiest would be ClassicWB because it's up to date and still actively developed.