Seems like there is a lot of wood (wings and aft fuselage according to Wiki) ..not sure if I would be brave enough to buy one sight unseen.
On top of that, you have a center section made out of steel tubing which might harbor corrosion.
Then, even if it has a supportable engine and prop, you might not have any idea where important items like wheels and brakes came from or what would be adequate replacements (wheels and brakes are a big issue with many antiques....even many more common types. Many times different parts need to be adapted due to either no supplies of the originals or they were inadequate to begin with).
Then, you might need new instruments, and obviously modern radios .
Are there Logs and manuals included, if so in what language?
They sound like fun, but remember, buying, restoring and operating one won't be like owning a Cessna or fabric Piper with plenty of parts vendors and club support.
And the owners of old Cessnas might tell you they aren't necessarily easy to restore either!

As previously mentioned, Bucker Jungmanns and Jungmeisters have a great reputation and are sought after (a friend owns a Jungmann with a modern engine), but I don't know if these have the same desirability to make importing and restoring one a economically viable proposition.
But if you want to round out your German warbird collection, go for it.
BTW...remember the one in "The Great Escape"?