I'm in the middle of building one now, but have had some issues... initially i was going to use a "timer" to keep games at 30 minutes, but was crashing with my attempts to create a "timer" Anyway, give me a bit, maybe a week or so, its not that long if done all at once, maybe like 4 or 5 hours work going through all the files, abilities, buffs, caps, frigs, planetmodules, researches. I think that is it. But with a week or so i can do it like an hour a day, and recheck, and playtest it a bit to see if it does what i want, which is the original balance of each race, just quicker game time.
Like you i have some reasons, for me, its that i cant be on the pc a long time, i average about an hour for games, and an hour for email, letters, etc, so its nice to finish a game instead of taking like a week to do one game, haha. Anyway, working on it now, will let you know when its done and you can let me know if it does what you want, or if there is something different you are looking for.
Thanks and take care,