The classic Trektop comes with door surrounds. They're not the factory style surrounds, but they work great.
The back panel/window can be rolled up or removed. The sides do not remove. You can take the whole thing off and stow it behind the seat.
I don't have any photos showing the inside of the top. But it's pretty standard: no bows means you see way less metal, fewer "pockets" and flaps and snaps than with a factory top.
(edit: I just realized some of your questions were about our competitor's top. Sorry. My answers only for sure apply to our top.)