Tor zum Salzkammergut

Intro: Emperor Maximilian I had close relations with the Wartburgcastle and this region, therefore he let his coat of arms attach on both city towers. Now his governor count Herberstorff tunes...
-'Hmm, emperors and coats of arms, but was Herberstorff not well 100 years later under the Bavarian duke of the same name well known in the farmer wars, especially Frankenburger Wuerfelspiel (dicegame)... '
- Oh, yes - my journeys trough space and time brings me somewhat in disorder - thus the governor let search for me, and so I had to find a way trough Veclabrucce. You do not believe me? Now here is also one of the secret treasure doses.

Now the description like he give it to me (adapted to the modern times):

In the passage of the citytower you find a board with X letters. Go these X meters toward market place. Look araound, you discover a well-known doctor. From the 3. Line of the inscription (with the name) take the 3. Letter (X1) and the next to last (X2), and of the 4 line the 4 letter of the 5th word(X4).
Nearly at the in the center of the marketplace you discover something connected to water (in winter camouflaged). Discover the inscription: The amount of the letters in line 2 tells you a house number (you want to compute also coordinates for your highly expensive, modern toy? - then take the checksum of the year as STAR): Now walk to this house number, cross 4 steps, go a few meter, until you discover again free sky over you.
-'What should i do here?'-
Nothing - turn araound and look upward: You discover digits, take the first 2 as, hmm let this be SUN. Now went to the marketplace, turn to the left and look for a remarkable 5-line inscription: Take the 3 emphasized letter (X3) and the last letter of the saying as X5.
- ', and further?' -
Add to the starting coordinates: N three times the SUN and E five times the STARs.You come to a place with SUN over you X1 X3 X4 X2 X5 before you and a Cache beside you. So - what more you want!

- ' hmm , aeh probably had the beverage with this discussion too many stars, and I had not been supposed to convert the letters into numbers..... Should there really be something? Ask for pertinent references! ' -