I saw this vintage Theo Klein garden furniture set on ebay. It's not the Theo Klein dollhouse furniture I'm looking for, but I thought someone might be interested. It is for fashion dolls up to 30 cm (almost 12") so I'm guessing 1:6 scale (?). They ship worldwide and opening bid is $9.99, but it is a one day auction so it ends about 20 hours.
Details from seller "... mint in the box theo klein garden doll furniture. It appears that all of the pieces are still with this set, but not 100% sure. This is a nice set, and made really wonderfully too. The box does show a little more than normal shelf wear to it."
(images from ebay auction from seller vintagegemsatoz )