scenario idea

[Makinus]

I´m thinking about building a scenario game for the single player, but i need some advice in how to build it... but first my idea:

20 Empires:
4 Master Scientists (Maxed Tech, only home system colonized but whitout ring or sphereworls)
4 Master Engineers (Starting tech, only home system colonized, but with a sphereworld and 2 ringworlds in it)
12 Master Strategists (Starting tech, all the systems the empire can grab before getting in contact with another empire colonized).

I´m thinking to create the game by steps: first creating the sphere/ringworld systems with the map editor and assigning the equivalent empires to that systems (with the correct type/atmosphere for the selected race), then i would play all the empires until the Scientists maxed tech and the strategists colonized all the planets they can before reaching other empires borders... the strategists and engineers would not have any research, the scientists and engineers will not colonize outside the home systems and there will not be any kind of inter-colonization...

All contacted races will have a Non-Intercourse teatry set among themselves (or a No Tearty would be better? ideas?)

To set everything in the way i´m trying to build this scenario i would have to spend a long time to set everything... i´m calculating that the most time-consuming task would be to the scientists to max out tech and i would like to know if there is any way that i can speed up the game setup...

Other thing i wish to know: if the Scientists start the scenario with maxed out tech, would they continue to build research centers in new colonized planets?

Assume that i will use TDM races for the game... what races would be best in what roles (Scientists/Engineers/Strategists)?

Would it be a fun and challenging game for the single player? Assume you can trate the scenario in any of the 3 roles...

Any additional ideas?

Thanks