I played around with timelapse a few years ago (nothing special) I hit the flicker issue because I had used a tungsten light to light the scene. Someone told me how to remove it and I'm sure I didn't need an additional plugin for it. I'll have a think and see if I can remember how I did it...cheers - yeah I considered that carefully and figured people could watch it a few times
Could use a bit of deflicker I think but I can't afford the plugin at the moment.