While I will make the iconset and separate components available for someone to make their own 2.x disk, I don't want to focus on it at all. I have a few A500s and A600s and they all have Kickstart 3.1 in them (some still have 1.3 as well on ROM Switchers).
The whole Amiga experience is better with Kickstart 3 instead of 2, and barely uses any extra RAM if any. Kickstart 3.1 EPROMs can be picked up so cheap these days, or you can flash them yourself if you have the hardware. I don't mind if someone wants to make a 2.x version, but I'd rather focus on one for A500s and A600s with 3.x ROMs and provide instructions on how to acquire the ROMs. If anyone needs a hand getting some they're welcome to send me a private message.
The idea of the smaller Workbench is to be able to run from floppy with the option to install it, so it should be pretty close to what you want.