My top tip for that area is to phone up each major airfield en route, tell them where you want to route, and ask whether there is anything you need to know.
I think they prefer IFR type routings i.e. along VORs and intersections. You just need a GPS.
The best English, I have found, is spoken at Tirana (LATI). Not sure how long one's wheels would last if one landed there, but probably longer than at Liverpool
