I hope I'm not in the wrong thread here - please let me know if I am. I am about to get a KT (it is somewhere in the postal system at the moment) as a replacement for my broken Jetbook. I will have only a few days to get it working before I go away to my in-laws', so I need a lot of reading material

. Whilst I am quite happy to play with my KT (indeed, looking forward to it), I really need it to function as a good ereader for the time I am away, because English-language books are expensive where I am going, if you can get them at all. I am hoping not to have to take my laptop with me to save a bit of weight, so I need the KT to be a stable reader for a week.
With that in mind, I have a few questions after reading this thread over the last couple of days
1. Which firmware is best for simply reading books at this point? I have a library of books already in Calibre, all epubs, most of which have been edited by me using Sigil. I would prefer to keep the books on the 8GB micro-SD card I have (which recent forum-patrolling suggests might be a problem) in case I need to do a factory backup whilst away. I have downloaded the .zips of 1.9.17 and 2.0.2 to my computer already.
2. Of course, I don't know which firmware will be on the KT when I get it, so are there are any previous ones that I should avoid? (Working on the basis that if it comes with an acceptable version, I might as well stick with that).
3. Am I right in thinking that if I connect the KT to the internet via wifi at all it will immediately upgrade to FW2.0.0 if I am using an earlier version? (If so, this would be a minor nuisance because I wanted to play with the browser, but it can wait).
4. I have got the impression that I will not be able to sideload books if I have not registered the KT. Is this correct?
5. Finally, if I did (successfully) use FW2.0.2, is the slow page-turn in sideloaded books restricted to epubs, i.e. if I convert the books I want to take into, say, .mobis, will the problem be reduced?
Sorry for so many questions as a newcomer, but the success of my visit to the other side of the family depends on this working!