Yeah, the stands in particular look like the Bandai kits. I don't have any firsthand knowledge, but I just did an image search of the Bandai Enterprise NX-01 and 1701-E and found pics that seem to confirm it (pretty sure these are the instruction booklet covers):
Good call! Scalemates site provides archival info on many (most?) model kits, so if you do a search for "Bandai 1/1700 scale", you'll find a link like this one:
Bandai model kit in scale 1:1700, 0116424 is a NEW tool released in 2003 | Contents, Previews, Reviews, History + Marketplace | Starship Sovereign-class
www.scalemates.com
It is a good resource and expanding all the time.
Cheers!
Robert
If you're looking to add more to your collection, I'd recommend scouring Yahoo Japan auctions. The only thing is that you'll need to use a proxy like Buyee or Jauce