If you have a good first layer then you should be able to print 5 parts at once. I don’t have a good enough first layer to do so.
Print with at least 0.15 mm layer height to ensure the pins on the plates are smooth. And use a lower printing temperature than you normal would to avoid stringing between the pins.
The two different model can be mixed together since the pin placement are identical on both versions.
You can glue them together if needed, but the design is quite stable as it is.
Credits:
Jacob Laage Kragh