Transfer of ownership

Hi. Currently a Ring customer with the Home Standard with included Professional Monitoring.We are selling our house and the new buyer is going to get the existing equipment (except for one doorbell camera and one outdoor camera that I have already moved to use at our new place).I expect to buy a new monitoring station/keypad/motion sensors/contact sensors for our new place to use with the doorbell camera and outdoor camera we already brought over).Can this go on my existing Ring account as a second location and then I can delete the original location from my account?How do I go about transferring the equipment at the house to the new owner once they take possession (base station, keypad, contact sensors, motion sensor, panic button, water sensor, range extender)?Just want to ensure I do things in the right order