There was an official dvd release of Gunbuster by Honneamise. It was extremely limited. It was a gatefold, with a full mini artbook included.
How do I know? I own the set. https://www.amazon.com/Gunbuster-Noriko-Hidaka/dp/B000KGH03Y
What you more than likely have is the HK bootleg (I have it as well) where the ships are called stoves, because they used machine translations.
But if you know the cat site, you can go to 761012 for everything or 1209480 for just what you want.
Both Gunbuster and Diebuster have a DVD stateside release.
http://www.amazon.com/Gunbuster-Noriko-Hidaka/dp/B000KGH03Y/
http://www.amazon.com/Gunbuster-2-Complete-Kazuya-Tsurumaki/dp/B00BUAEZFA/
I think this might be the exact thing I heard about.
wow
I found this though
http://www.amazon.com/Gunbuster-Vol-Complete-lot-DVDs/dp/B0015Z0PBS/ref=pd_cp_mov_1
and this (but I think that's a random person selling all 3. . .)