I have found the 3 inch Rockwool cubes to work extremely well and super simple (and cheap too!). I use Clonex "purple" with great success.
Naturally they will need a "humidity box" and mild lighting while waiting for the roots to form. The clones can be planted once the roots are coming out of the cube and be planted cube and all into whatever system you are using, even in soil.
Hope this helps,......... Organoman.