1100D is an inexpensive option to start using ML, true. It has lower resolution than 1200D, but this also means larger pixels and good performance for night photography.
But current implementation of ML for 1100D has some limitations. Mainly in features related to RAW data reading: ETTR, Dual-ISO, RAW histogram, RAW Zebras. I think they do not work in Liveview mode on the 1100D.
There are other options; you can get a used 500D or 550D, they are also affordable and will provide you that features missing in 1100D. It depends on your specific needs.
There are some tables that show ML features available on different camera models:
https://builds.magiclantern.fm/#/features https://docs.google.com/spreadsheet/ccc?key=0AgQ2MOkAZTFHdFFIcFp1d0R5TzVPTVJXOEVyUndteGc#gid=5http://nanomad.magiclantern.fm/feats.htmlhttp://nanomad.magiclantern.fm/nightly/features.htmlSome of them can be a little outdated. So best thing you can do, before buying a camera, is to read thoroughly the specific thread for that camera in the "Camera specific discussion" section, to know last news about available features and known issues with your desired camera model.
Excuse my poor English. As many people here, I am not a native English speaker.
And please, do not consider Walter a rude person, he is doing a great job here, patiently guiding new users through their first steps installing and starting to use Magic Lantern. Your post asking for a video explaining how to port Magic Lantern to a new camera, might have sounded too surrealistic for him. As explained, that is a very complex task. Your question is somehow like asking for a short video to learn how to compose a simphony, or build a rocket for a mission to Mars ...