Certainly no need to add layers of soil as they used to advocate years ago - there'll be plenty on the roots of weeds and uprooted plants. And for that matter, I think the modern idea is to mix rather than layer stuff, which makes more sense.
Lime, I have no idea - certainly compost ends up acidic, but that's useful for spuds, which get a lot of it. I've never added it.
Lice? Do you mean woodlice? If so, no matter at all, in fact they're useful detritivores. You won't have head/body lice in there, you may be pleased to know!