All well and good planning meticulous escape routes for the Q400.
Having spent a good deal of uncomfortable time bashing through the Alps, despite rather than with the help of Italian ATC, this is a recipe for disaster.
Direct routings and WX avoidance will result in AC being off route when shyte happens and, by virtue of it 25K ceiling the Q400 is going to be going all over the shop to avoid crashing through some of the nastiest CBs around.
Didnt Emerald have an interesting experience a few years ago with a turboprop that strayed over Mount Blanc? New trousers all round after a hard GPWS.
Sorry, this is lunacy.