Hello, I am trying to replace a sliding door latch with a key lock on the outside of the door.

Hello, Mike. Both products you mentioned have unfortunately been discontinued in the years since that video was first uploaded, though we do have modern equivalents that work the same way. However, none of them will work on your door.

The problem with your door is that when you remove the old lockset, there is a huge rectangular shaped hole left over where it installed. This renders handles like the old 82-035 (and our modern equivalents) useless, since they won't be able to install.

You are pretty much stuck using the same type of lockset you have now, unfortunately. It's one of the reasons I always hate working on these doors. You're just so limited when it comes to replacement parts, and since they're an older style those parts can be hard to come by.

All that said, reviewing your photos and the design of the old hardware, I believe our 82-002K can work for you. This is a keyed lockset with a hook latch in the lower most position. I do believe it will work on your door and has a keyed exterior handle. This is probably going to be your best bet.

You got it! Best of luck with the rest of the project. We're always here to help if you needed it.