In case you missed it earlier...
...I'd be tempted to call Cory Suddarth as I've heard good things about his work.
Thank you 4th point,
I did visit his website....
And that is a possibility
Good luck, whichever way you go.
If you do speak to him, it might be worth asking about general construction of different brands for your next purchase.
When I was working for a commercial contractor, we had a fair amount of power handtools repaired. Very enlightening to talk to the dudes that see and repair everything. My friends and co-workers were usually diehard Makita or Dewalt fans. Hilti for certain things. Repairman dispelled a lot of myths and claims by brand loyalists. Maybe Cory can shed similar light onto the bino world?
Jason