Thank you for your patience. I believe we may have a few part recommendations for your corner key and latches that could work as suitable replacements.
You corner keys look similar to the 95-231 Tilt Key Pair. Although, it has the mounting screw on the "face", which means you would need to drill a new hole to match the ones in your corner keys.
As for the latch, take a look at our 91-006 Latch Pair, 91-026 (and it opposite handed version 91-027) and the 91-130 Slide Bolt Pair to see if you could replace your existing latch with any of these. Their dimensions can be found on each of their product pages. See what you think!
