Norfolk....
I owned a Nexstar as well. Awesome trainer.....hands down!! You will have a lot of fun with it.
Like the other guys told you already...check the pushrod linkages..make sure they are tight, so nothing will come off during your flight!!
Check the Servo screws..make sure they are nice and tight.
Check the engine mount, just to assure the engine is tightly mounted. don't go overboard though.

Also...trim the ailerons before take off somewhat....most of the trimming you will have to do during the maiden, but I had some adjustment to do on mine.

Good luck,,,,welcome to the hobby...