More campaigns?

If there is anything that I am dissapointed with the game is that there is only one starting period. After being used to three in MTW (although 95% of the time I played early) I did like the options of the three time periods. But after looking at the campaign text file I think it should be pretty easily modible to give some different campaigns.

Some possible ideas I would like:

1) A 220 scenario with Hannibal before he is to invade Italy. Carthage would be much stronger than they are in the imperial campaign, and would control most of Spain. Rome would also own some provinces in northern spain and southern gaul.

2) An earlier scenario (350-300?) to do the Alexander campaign. Maybe have the Greek cities be a protecterate/ally of Macedonia. In the east have Parthia be much much stronger and own basically all of asia minor, the middle east and have Egypt be a protecterate of them. In the west keep Carthage as is but make the Romans weaker. Perhaps if possible only have a single Roman faction owning 3-4 provinces on the Italian peninsula with the senate still having Rome. The guals can own some of the north and the Greeks and rebels the southern tip.

3) Roman civil war in ~50 BC. Have the Julii be very strong in owning part of Gual with the Guals as an ally/protecterate. Also own the north of italy. Probably use the Scipii/Bruti to model the Pompeian faction. They'd have control of Africa, Greece, Spain and southern Italy. Have them be stronger economically but weaker militarily. Carthage of course would be gone. And so would some of the near eastern ones like the Greeks. Further east the parthians and egypt would still be around.

Also with the short campaigns I wonder if it is possible to set victory conditions. I recall MTW having something like that. Do a Julii in 60 BC or so and have the goal of taking Gual and southern Britain.