Thx for your help. I actually did it the manual way with the curves, but man it took alot of time. It wasn't enough to do it with only a couple of curves, there where many
I might have done something wrong because it took me over an hours just to fill the gaps and make it end correctly at the bottom. Will give it a try again.
Btw the second plugin from numbthumb actually worked well, but it can't do all of it.
Thanks guys and have a great weekend!