where should I look?
Thanks for reaching out to us! I wouldn't be able to use the information from the door to identify the parts you need but the photos will suffice. They are what we use to identify the hardware.
If you are looking to replace the handle set and the mortise lock, I suggest using the 82-030 Sliding Patio Door Handle and the 82-265 Multi-Point Mortise Lock. The keeper used with your mortise lock may not be compatible with ours, so you may also need to purchase the 82-249.
To determine if these are the correct replacement for your repairs, you'll need to look over the dimensions and compare them to your existing hardware.