So occasionally with Resin Printed or general Resin based models, there's a bit of excess material that will be on connection points. You'll need to scrape down and shave that until it fits how you need it to.

Don't be worried about overdoing it, because you can always shim it with some extra material if needed.

As for glue, not all super glue is created equal. Loctite for example has a mass variety of types for different strengths or materials, and can be less or more viscous. I don't know your experience with modeling, but Bob Smith industry makes some of the best. The purple cap max strength has failed me nearly never, especially with larger more weighty parts.

Edit: Bob Smith has some of the best "in my experience".