I thought more about one of the other future Separatist members attacking another peaceful world (with Sith prompting) with catastrophic results and Dooku broadcasting his observations to a skeptical council.

Giving a total free hand for a new opening sequence.

I wouldn't have Nute Gunray land until near the end of the film when he is convinced that the Naboo and the Gungans have both been defeated by his Geonosian battledroids.

Sort of like V'Ger attacking the Klingons sets up the danger to Earth in Star Trek The Slow Motion Picture.