Sorry to take a while to reply — just back from Germany.
LC tells me that the printed hard back copy will be between $39 and $49. That represents their cost to print and make some profit. I’m committed to not taking any royalties ever.
I will know more about the time it will take to put the content into the LC system in the coming weeks, when I produce Version 4.0. My impression so far is that the costs are minimal — though I will always produce the .doc and .pdf versions first and then conform the LC version, so that involves a second round of editing. Working in LC is like working in an online text editor.