Forum members: Exercise extreme caution in dealing w/ this person selling a Rotax 503, who joined the forum on June 30. They listed their location as Mexico. Their ISP was also in Mexico City then.
Today they applied to join the forum under a different forum name, using an ISP in Austria, while now stating they are in Austria. Today's application was denied as a result, since the forum software showed them already being a forum member sharing that exact same ISP.
New forum members (who are not known to any other rotorcraft community members) offering items for sale quite often are selling something for a good price that doesn't exist, or it is never delivered once money is sent.
Additionally, it is best to set eyes on something for sale in person, unless that person is known in the rotorcraft community.
Also, there are numerous grammar & punctuation errors in the posting, that usual English-speaking folks (as the primary language) don't commit.