Sweet2th, I've known about them for a while. Yes, I know they use the original plans.
I just meant they add new things. They have modern technological advances designed to make it a functioning (modern) private plane. Rather than an accurate representation of what the real thing was. Sure there are a lot of similarities, but to me, it's not the same.
EDIT: Sorry if I came off as argumentative in the last post. My personal opinion is that flugwerk's work (while great in its own right) isn't exactly the same as building a true-to-spec warbird. Sorry if I wasn't very clear.