On the Slovakian FA website, they have announced sales for the Scotland game. As from 11.00CET on Monday the 19th, they will be selling double tickets for the Scotland and Lithuania home games starting at 24 euros. Tickets for just the Scotland game on its own aren't on sale until early October. However an extra 6 euros to get a ticket now seems a bargain.  Can always sell the Lithunia ticket to a local for 6 euros http://www.futbalsfz.sk/reprezentacia/slovensko-a/spravy