Thank You all for the appreciations.
papekuraviewer, I saw that You followed the link in my signature at the thread of my project of the Sopwith Swallow. BTW You can find more at this
post. Don't esitate to ask me If You have any question.
In the mean time I continue to looking for Inkscape tutorials on internet, to improve the result of texturing.
In the following screen captures You can see the first result that I reached. I found the way to covert the raster image produced by Pepakura in a vectored one, and the comparison between the two type of images when You enlarge them. I also redesigned the stencils. So, if someone would like to enlarge the model...
Nando
PS: the vectored ones are on the left, obviously.