If it all goes t1ts up between now and then how expensive is a replacement ticket going to be with another carrier. Don't think I would take the chance. It's a miracle it has lasted this long, do you really want your plans curtailed/cancelled at the last moment ? If not, well you know what to do. Stag night in Prague or was it Bratislava? well, much the same "attractions" anyhow
and here's me talking about risks . . . .