Thank you for contacting Intel community.
1- For tray dimension 5M160ZT100C5N, please refer to tray drawing that was send through private message.
2- For tray orientation, it is live bug orientation, please refer to the AN71:
3- For peak temperature, washable or not, time above liquids and heat cycle, kindly refer to process reflow in AN353:
Do let me know if you need further information.