Yeh all the gearboxes will physically bolt onto the CG family engines (they're all the same basic bellhousing bolt pattern, FB41).
If you're using a gearbox from a 1.0L you really should stick with the flywheel and clutch from a 1.0L as well. That way you eliminate pesky problems. You could probably play around and try fitting a 1.3L flywheel and clutch but honestly just go with what you know works (unless you have easy access to lots of spare parts and have plenty of spare time to stuff around mixing and matching things).