AmigaForever has a nice 3.x Workbench with truecolor networking, apps, etc. I don´t know AmiKit, but I heared a rumor that there wouldn´t be much difference. The bonus of the Premium Edition of Amiga Forever is that it includes a VHS-quality Version of Dave Haynies Deathbed Vigil along with other Amiga-History Videos.
The CD is bootable (KXlight/Linux) and boots directly into an emulated workbench. I haven´t figured out how to make it "see" additional removeable media to really make something useful with it, however.
My version is the 2008 edition.