I dont know where Cyano can be downloaded...sorry.
You can take a look by decices forum on en.miui.com or miui.es
If your phone is RedMiNote 4g dual sim it comes with Miui6 installed...
I dont use gapps so I have china ROM installed in mine...
If you need gapps and you want a light official miui ROM you could download it on miui.es
http://miui.es/index.php?board=1114.0#page-content-wrapper this link usually shows the last stable and developer ROM from miui.es with english language feature added.
A greeting.
RedMi1S/RedMiNote 4g dual sim/Mi3
...circles and rings, dragons and kings...