Scrolling through all this thread, it’s easy to understand that you have all you need to seriously start this project. I mean: @Diino and his girlfriend, that own a decent recording equipment. Then @Winston_Smith and @xC00K1E, that also have a similar equip and apply for a major role. Then @milanfahrnholz who proved to be hilariously effective in his performance, getting to know yet some of the secrets of this kind of dubbing. Then the forum regulars @Someone and @Mario, together with many other German fans here and outside. And also, as @Ema said in detail before here, the support of the italian dubbing team, as for hints and suggestions, not to mention the placet of Ron Gilbert in person! Furthermore @Guga and @Frenzie that have been willing to give their peculiar german accent to Boris or other characters.
And the new features of Rhubarb LipSync by the german friend @DanielWolf. His software now fits well other languages than English, including German, obviously! Check here: Thimbleweed Park Italian fan dub Project - Official Thread(TM)
From what I see, there’s way more to start than what we italians had, back then when we started. Considering also that LucasArts adventure games have a huge fan base in Germany, which will turn into a great help for you in order to find good fan actors.
P.S.
A hint? Just create a Telegram chat group, with a public link to post here and somewhere else you think it’s useful. People can join from every kind of device and OS without being worried of revealing their personal number for spamming. Start chatting. In the worst case, you may find new friends!