[Coco] assembly programming on a 16K CoCo 2

[doctorx0079]

Okay, ATM I have :

16K CoCo 2 with plain old standard Color Basic

FD502 floppy with controller and some blank disks

128K CoCo 3 (which has ECB 2.0 of course)

and a broken cassette drive with no cables.

I want to make small assembly-language games on the CoCo 2 as well as the
CoCo 3.

Is there any way to get the CoCo 2 to use the floppy?

Would my best bet be to get another tape drive and the EDTASM+ cartridge?

For the CoCo 3 should I get Disk EDTASM or use the EDTASM+?

What about Rainbow IDE and Portal-9?

Are there any web pages with info about this stuff??