I don't think it needs to be scale. The majority of offerings in the vehicle line have not been to scale, so why start with this ship?
I think it's doable. Like David said, it's mostly wings. As for the main hull, if they can make a cockpit at least as large as that on the BMF Falcon, and a cargo bay it could be pretty cool. I don't think it necessarily needs to be able to fit a Jedi Starfighter inside though.