sorry but UHU02 has quite strict rules when it comes to his papercraft designs. (too often they end up getting sold by third parties) while you are free to download and build, he asks that you not pass them on. In this I have to respect his wishes.
HOWEVER he does have a password protected closed library that is available. the only trick is (and rule is you have to find it your self (and the log in)
sorry. I do have the files but its part of the agreement that you don't distribute them to any one else (UHU02's rules not mine)
he does have a, closed, library, where you can download all his models, but he asks you do a bit of leg work to discover the way to access it your self. the only clue I'm allowed to give is zealot.com/
I know this is a pain but I do have to abide by his wishes in regard to this.