Need whole new handle lock and key replacement for SGD R20 96x96, series 8670

That code is an indicator of what application the door is for. It's a residential sliding glass door. Unfortunately, that doesn't identify the hardware. Can you send a photo of the handle set you're trying to replace?

Looking at your exterior handle, you might be able to install just the 82-310 key cylinder. You could also purchase the 82-306 exterior handle with key cylinder, but it only comes in the black finish. 

You may also want to consider replacing your keeper. It looks like you just have a piece of metal from something other than a Patio door. Look at the keepers I've listed on this page to see if one of these could work better on your door.

Awesome, glad to hear it! Please let me know if you ever need anything else.