finished building my 811e today. Ran into a few snags. Few screws stripped due to tight fit (have good tools, hudy) several holes not lining up right. However the most difficult was the motor mount. With the motor mount tightened to the motor it would not go into the car mount. Had to take off and dremel ALL the anodizing off both parts and thensome, just to get the motor in the car. No way it was going in without it.