i found one Billa in Google Earth i think its the same you fond.
There is another Billa on Lido tomorrow i can poste the GPS Data.

I someone would take the ÖBB IC Bus from Klagenfurt -> Villach -> Veneve leave it.
The 1Class looks verry nice on Pictures but it feels like an Ryanair flight!
There is no way to use the Laptop on an regular 1Class Seat. The Table is verry small and its hard to work whit mire than 2Laptops.