Ryan checked in with more info on the Queen's J-Type 327 Nubian. Highlight the spoilers to read:

NABOO QUEEN'S ROYAL STARSHIP

Chrome finish is purely decorative - the finish is called ROYAL CHROMIUM. The finish is hand crafted, not by machine or droid. Only The Queens ship is allowed to be entirely chrome. Royal fighters etc have some chrome. Private vessels are not allowed to have chrome parts. (Ed. - This seemed odd since Maul's Sith Infiltrator looked chrome, but I guess I was wrong.)

The ship itself is also hand crafted by the Theed Palace Space Vessel Engineering Corps. The ships is an Embodiment of the Spirit of the Naboo people. There love of beauty and art etc. Even the wiring is perfectly placed and run in parrellel conduits etc. The whole ship is a work of art.

The ship contains 8 Astro ultility droids (presumably R2 units), for maintenance and repair. They are stored in the Droid hold of the ship which is under the cockpit. 2 human crew to pilot up to 6 aditional people can reside on board. It has no weapons. Purely a diplomatic ship. Has a class 1.8 Hyperdrive. Custom designed for the craft. Described as impressive. So presumably 1.8 is good. Naboo have a no weapons if possible peace philosophy similar to Alderaan...

Thanks for the info! More to come!