No I have not read any of these manifestos, however I have studied under Deobandies all my life where I live in the UK and I have never heard them mention anything about Islamic rule and how we might be able to take some steps as a jamma to make it happen. The Alim I listen to always says you are a 6 foot tall man, make the shariah apply to your own body before you try to talk about khilafa etc. Banks are never criticised, riba is hardly ever mentioned. Secularism means religion is a private affair for individuals to follow if they wish, it has nothing to do with the way a country should be run. And the type of religion followed by the hanafis I know is perfect for this secularism.
I mean do any of the hanafis have fiqh rules of how Muslims might live in the world without a riba banking system? How we might be able to have a working alternative? As far as I know they do not, and most of their fatwas just make Islam fit in and work within the dominant capitalist system...not replace it.