Like Disturbed - Inside The Fire, EkoTren - Death Blanket, and Silent Civilian voice.
You have not enough facts to get a real opinion. Harassed how? When? Where? Did anyone else see this? Under some circumstances you could get a restraining order to keep her at some distance.
Go with 1. Get the main structure together, do any sanding filing or filling you have to do then paint. Nothing stinks worse than screwing up a paint job because you get glue, filler, whatever on it- and with resin, sometimes it's too easy to damage the model trying to clean it back up (don't ask how I know!) If it's a building, get the outside walls together and glued, and get the roof fitted. Then you can paint the interior if you like before you glue the roof on. If there are small detail parts that would be hard to paint on the model they can be painted first then applied, but get the main body finished first.