Searching for interior door latch and screen door rollers

Thanks for contacting us. Your internal mortise lock looks like our 82-226. Look over our dimensions to confirm. 

As for the patio screen door rollers, it's impossible to say what you need unless you remove them and show us a photo of them separate. You could start by looking at our 84-002 or 84-008, but these are just guesses, and only two options among many.