Finally I have assembled the "creature". What do you think? I can now declare this project officially (and happily):
COMPLETED
I feel very glad with the result.
Despite having a dedicated thread to thank in this forum, I want to thank here to everybody which have helped me in any way to finish this project.
to all of you:
Thanks!
A special thank to my friend Andy (aka Dr Wobble)
You are all invited to the christenning ceremony.