Need help identifying sci-Fi movie from late 70s/early 80s.

[Zaxxon]

I remember seeing this movie in the theatre when I was a young child. From what I remember the plot centered around a family that moved into a house in what looked like Utah or Wyoming (the house was a circular type design if I remember correctly). While in the house, the family is visited by many strange things. mainly I remember a small alien-type being (looked like a typical 'grey' and about the size of a GI Joe doll) and a small spaceship about the size of a large toy or model. From what I remember, the little alien was friendly and the ship was an enemy. The family experienced many trials and tribulations and then left the house on foot for some reason. The family, at the end of the movie, came upon a huge futuristic city. It seemed be a happy ending of sorts. I have been trying to remember/track down this movie for a long time. Any help is appreciated. Thank you!

[Shadow]

Sounds like The Day Time Ended.

http://www.badmovies.org/movies/timeended/

[Zaxxon]

I think that's it! The vacuum cleaner of death is the spaceship I remember. The house and setting is how I remember. The ending is how I remember. However, I don't remember the big monsters fighting. I can't find it on any streaming services. I guess the only way to watch it is on DVD? Thanks for finding!!!