What I did was give up working on privately owned aircraft about 15 years ago.
I swore I would only work for people who owned and maintained their own aircraft ( actually I also swore I would never work in the UK again, but as they say never say never). By and large I have stuck to this and the end result has been a reasonable living and a lot less stress.
I notice that this months Flyer has a list of maintenance outfits with their charges, maybe the answer to our problem lies within it's pages.