Of course you can write down your ideas for episodes, but I don't think they (the Stargate crew) will read it :P hehe.
Anyway, I like the idea. Do you have those old Stargate books ? In those all the old Goa'uld appear (it's made with the ideas of the movie) and there's the one who constructs the ships for the systemlords. But know everybody is making his/her own ships. Still the idea is cooool. Teal'c could have his own mothership, lol. Unics sounds great.
PS: Tau'ri !! ;P And as far as I've heard the ancients probably won't appear (only from what I've heard), but yes, you'll learn something new