Thanks very much for taking your time to give me answers.
The link will not be shorter if I bend it like ScotY suggested.
Tonnyscott, I already have the servo mount behind the plate
. That only saves 1mm of servo height. All 4 servos were already behind the chassis plate.
If I let it lean, it touches the servo cases during its travel towards one of its limit ends.
I finally chose the bent method
. it limits the negative pitch a little. But this could be saved by using longer servo arm to increase servo throw.