Many Thanks!, it has been solvedlong ago:
http://forums.sketchucation.com/viewtopic.php?f=18&t=18244&hilit=+organic
I didn't find a better solution than modeling it by hand, until it fits from every perspective to the outlines of the photos. My favorite alternative was the following:
Arc3D http://homes.esat.kuleuven.be/~visit3d/webservice/v2/
Creates automatically models from many photos. Seems to be promissing and very accurate, but off service.
Sketchup photomatch
Very accurate, if you have really orthogonal geometry (not in my case).
pixdim or http://www.photomodeler.com
Similar to photomatch, but using two photos (i.e. stereo photos). Very accurate, if you can place the black/white reference points before taking high resolution photos. Otherwise (photos from web) not accurate.
Archipelis http://www.archipelis.com/product.php
Good for rounded things, not accurate.
http://make3d.stanford.edu
Uses only single images and makes a very inaccurate guess of the depth info. But nevertheless impressive.
http://www.photo-to-3d.com
In the free version, it uses only two images of low resolution and was not able to create any polygons.