How much experience of west coast / Scottish rural life have you got? From your questions I am not sure how much time you would spend there. 'West Coast' covers a huge area, from FtBill and Oban with all the amenities you want, to ar*e end of Argyll or wildly remote Culkein...
For me (and I would suspect most who live there) that midges, wet and windy weather, long dark winters, are just part of life.
Midges can be a pain, usually at peaks through the year, but that is what choosing location, Smidge and nets are for.
Weather and the knock on effects of weather are more important than midges.
More of a pain is the travel times, lack of public services and general rural issues - lack of employment, mixed economy, small communities, lack of housing, high energy costs etc etc.