Mine came with the Bimini and front wind screen. I have been caught in the rain a few times. Both times we just kept going and most of the rain went around the cockpit area. Met a fellow member that sold his 256, and had the curtains for-sale. When I went to put them on in the drive, all the zippers were going the wrong way. Off to my canvas guy I go, he gives me a dirty look. Says by the time I take of all the zippers off and reattach redo the snaps. I could have had a new set made. (@sshole tax coming). He didn't though. Still was about 700 bucks. I've only had it up once since then.
Moral of the story; if you want to sleep on your boat or boat in cooler weather, find a local canvas shop. Get ready to spend 1500-2500 for it.