Consider bringing in some papers to whoever you are adopting her from about declawing a rabbit. If they ever get a rabbit again, hopefully they will read the papers and research more before getting an animal
1) Agreed. If it ever causes her pain, with her being a single bun you would be able to monitor that easier, too
2) I think steps could cause pain as she gets older. Can you replace the ramp to be less steep, if it is? She might have a hard time gripping so if its too steep she wont be able to get up. A gradual incline would be best
3) Likely, but thats possible for buns even with claws. Avoid floors where the bun can slide. Fleece blankets and rugs on slick floors should be enough.You might need to line her cage with a fleece blanket
4) Likely for infection, but Ive been told cysts can pop up at any time. You might need to talk to a vet about that
5) Since she wont be able to scratch herself, it might limit grooming. You might need to groom her more often to help out 