Takk for hjelpen,
You make some very compelling arguments for Skadberg in Egersund. I did not see the place before now. I did see the baptism for Claus before but I was not able to read all of information (my eyes for Norwegian Church Script is not that good). Also since writing this question I think I have found that Kristine was confirmed at the Egersund Church in 1776
http://www.arkivverket.no/URN:NBN:no-a1450-kb20070418650489.... But I don't see the date.
This tells me that she probably was from the Egersund area. Don't yet see a baptism for Kristine in 1761.
I'll also look into her connection to Peder Claussøn Friis.