Scampers Yahoo Group have replaced their door latch with one from Fastec Industries. I ended up using one that looks the same but was made by Bauer Products and distributed by AP Products since it was available at my local RV parts store.
cutting other holes in the trailer, I cut a hole for the new style latch assembly and removed the old striker plate.
For Scamp owners that review this one closely, you'll note that our door seal is mounted to the door itself instead of glued to the trailer body in the factory stock manner. When I did the seal swap several years ago, the seal was available locally. I've never seen a source for it on line, and I don't know if the T-2 seal is still available at Space Age Paints or not.