Door mortise lock

I'm trying to help out an elderly lady who's husband installed the door but he has passed away and she has no idea what make it is. I've looked all over the frame and doors but have not been able to find any markings, I've only been able to find who the glass manufacturer was. He installed it in the 90's and she believes it came from Home Depot. I'm not sure but I think they were selling Jeld-Wen back then.

Any help you could provide would be greatly appreciated as she doesn't have any money to replace the door and if I can find the mortise I'll just absorb the cost.

Thank you,

Oscar 

Hi Casey, yes your 82-218 looks like the one I need. If it doesn't work can I return it for a refund? Also, as I mentioned, I'm trying to help this lady because I've done a lot of work for her and her deceased husband over the years and so I'm going to pick up the cost of this. That being said and because it's an older door I'm going to try and use the existing handle. Once I get the mortise and if the handle won't work, I'll be in touch with you to get the handle. Thanks for all your help Casey, how do I go about ordering the mortise?
Oscar Chapman