Instead of writing scattered document what about a wiki page here on mobileread? I'd refer it on the first post. I could write it myself, but beside still being on holiday, I'd rather spend time on adding features and solving bugs
About tweaking the file manager font size, are you using the latest build with higher dpi or not? I think it shouldn't be necessary once the dpi is right for the device, out if you all agree it is, I could propose to change it in upstream koreader.