IMHO if you're dead set on using this the LP requirements should be symbolic. A village should die if all it's members go inactive for a week or more, not if two of them go away for a day.
Oh, and you really really should've included some kind of authority objects that has a huge area, very low drain and no crime protection, so we can expand the village claim over important points in our local area. I understand that we're not supposed to have everything, but being unable to claim a mine and a clay spot 3 area maps away is just too god damn frustrating. I guess I'll just make alts in remote villages, feed them with emmentaler and put them on a macro 24/7. This'll be the first time I macro in my 10 months of playing, I hope you're happy.