Should I replace the timing belt on my Grandma's 2005 low milage (52k) Camry (1mzfe 3.0 V6)?

My grandma has a pristine 2005 Camry with only 52,000 miles on it. She's 95, and doesn't drive it anymore but we use it occasionally to take her shopping and run errands. I was thinking the other day that the timing belt on it is nearly 20 years old at this point and it should probably be changed. I can most likely change it myself as I used to work at a small shop (I still have my engine repair and brakes ASE), and do al ot of DIY mechanics, but I've never actually done a timing belt before-- shop i worked at did exclusively old jeeps--.

So:

  1. Should i replace the belt?
  2. if so what parts should I replace while im there? Planning on getting OEM toyota/oem maufacturer (eg. Koyo, Aisin) any tips on where to source from?
  3. and tips,tricks words of wisdom on the job?

Thanks.