Welcome to the 'Downs, NorthSaber! Enjoy being dead

I'm Finnish so I think I can help you a bit with some of those things you listed.
About Quenya beeing inspired by Finnish: the pronaunciation of words are the same in both languages. Also the way of forming plural sentences is related.
Turin and Kullervo both lost their parents very early. Both of them had a sword or knife that was special to them and both killed themselves. Both of them had lost their sisters and later slept with them.
This is nit-picking but especially if this is a research for school, watch your spelling: it is
Väinämöinen, not Vainamoinen (in Finnish there's a major difference in pronaunciation wether there are those two dots or not)
Try the search funktion, it's very handy!
http://forum.barrowdowns.com/showthr...light=kalevala