Hi Chas: You can't advertise to buy or sell anything in the tech forums. Please put your request in the classified section of this web site. A 1927 Ford would be a model "T", not a model "A". Here is a link to the door latch: 1926-1927 Model T Ford Door Latch - Left - Front Or Rear - For Open Cars Only - MAC's Antique Auto Parts
The link is for a left side door latch, but they have right side latches as well.
No one lives forever, the trick is creating something that will.