Replacement Parts for Vinyl Sliding Patio Door

The mortise lock looks like our 82-218, so you should be able to use a handle set like our 82-020 or 82-035. For the track, we don't have an exact match for it, but what exactly is the problem? Is the door not running well? If so you may need new rollers. Unfortunately the only way to know what rollers you need is to remove the old ones and show us. See the videos below. 

Thanks for reaching out to us. We only sell one type of screen door track, and that's our 80-111. I'm not sure if this is what you have, though, so make sure to review our dimensions before you buy anything.

Profile diagram of 80-111

As for manufacturer, there is sometimes a metallic AAMA sticker on the inside of the frame that gives you a clue as to who made it. I can try to pick them out for you if you can show me a picture of one such sticker.

Lastly, considering cost for a new door, I'm afraid that's not something I can advise on. We don't sell screen doors, just replacement parts.