I don't think a mainstream company (like Revell) will start producing anything from SG1 at this point. Too old and relatively niche compared to something like Star Trek.
There's a lot of smaller, independent companies that might already be doing something to your liking. I reckon you would just have to spend some time Googling.
You can go here
http://www.starship-models.com/en/27001/scifi/X-304%20Daedalus.html
There was an earlier Daedalus kit I remember...
http://www.modelermagic.com/?p=42876
Not everybody wants to buy models from the companies mentioned; sometimes, they just want to go to a model kit store and just pick up a kit instead of going online.
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