In reply to Dutchclimber1999:
Additional gear - assuming you've got suitable boots, crampons and gloves...pair of tech axes.
Depends on where you're climbing and what style but maybe consider a monopoint crampon. Personally I climbed plenty at Scottish IV/V in walking crampons, it's possible but far nicer with a monopoint!
Rack wise for UK winter stuff wiresand hexes over cams, for the limited Alpine mixed on granite I've done cams have outscored wires.
Other than that without any knowledge of the area you mention I'm really not much help!