You are welcome!
Yes, they do wake me up at night now and again, but less now they are not kittens anymore. They will scratch and yowl at the door to be let into the bedroom/toilet/bathroom if they are shut out. Im not sure if this is a particular ragdoll thing, I think other breeds get attached to their humans. My raggies would be put out if they didn't get to sleep in our beds, on pillows etc.
Furniture. Again, not a ragdoll thing, but a cat thing, my leather sofas are ruined, as are a couple of chairs. There are things you can do to deter them from sofas but to expect no scratches at all would be optimistic.
Poo...not particularly big, just cat sized...litter tray isnt smelly as long as you scoop as soon as they poo, and twice a day for wee. I change the litter twice a week, and honestly, it doesnt smell at all. A covered tray helps with this, I think. Any cat likes a nice clean tray. We only have had wee problems when we have had a sick cat to deal with, they are very good with their litter trays, but I don't think that's to say all raggies will be the same.
Playing alone, they do play with each other, but prefer to play with a human and will bother me to play. They really do get very attached to their humans. I would never get a single kitten, they work better in pairs.
I do ignore the cats when its not convenient, but thats not to say they dont take great exception to this.
Have you considered a less full on breed? A British shorthair, or a Russian blue perhaps? I used to have a very sweet Russian blue, and my sister in law has one. They are sweet, but not so full on as ragdolls.
Oh, climbing curtains - not so much, they are more ground level cats, and as long as you have a cat tree, they will play on that, not the curtains.
On the plus side, they are ever so chilled out, calm, cuddly cats, and will follow their chosen person around all day..and they are beautiful! Oh do beware, their colors do change as they grow up, they start off white, and develop over 3 or so years. Most dramatically one of mine went from very pale chocolate to full on dark brown seal between 1 and 2 years of age.