Hello again Matthias! That sounds like a really good idea if you want to do that.
As far as joining the Tiger I group build, just post in the Group build thread and you're in! It's that easy. Then you can continue to post your inputs, progress, pics etc in the group build thread. It's really just a way for us to help each other out and share our progress.
Oh, your english is as good as most of ours is too
( I speak "Southern" a regional dialect of the Southern states so my english isn't all that good either
)
Eric