That is such a cute picture! I am still figuring out a good routine for my girl. She used to free range with the flock before she became partly paralyzed, and can't stand being in a cage (even though it's an XL dog crate). I am tempted to put a diaper on her and let her walk around the house...
How often are nails trimmed? Every few weeks, or just when they look long?
Some people might argue that it's not cruel to keep a chicken penned in a cage -- but I only do that for a hen that needs to be kept quiet during injury or illness; otherwise, I don't believe in confining a hen. But that's JMHO.
I made 3 chicken diapers for our Silkie and washed them in baby shampoo and line dried them overnight. We had to keep her 3 months indoors until she was old/big enough to incorporate into the outside flock of 3 other hens - another Silkie, a Leghorn, and a Marans (eventually we re-homed the Marans and Leghorn -- they were too assertive aggressive toward the gentle Silkies).
Anyway, having diapers on our indoor Silkie gave her all the freedom she needed to toodle around the house. But I had to change out her diaper at least once a day, sometimes twice, because diaper pouches do fill up with all kinds of different types of poop -- from cecal smellies to watery to firm clumps. I washed poop off her vent feathers -- the poop waste stuck to her fluff -- and then blow-dryed her washed vent before putting on her new dry diaper. It was a struggle first few times to get her used to wearing/walking in the diaper. My DH would get hold of the diaper straps across her back and gently pull her forward to force her to walk. For some reason chickens want to roll over or walk backwards in diapers for the first time so it takes trial and error to find the perfect diaper. I had a stubborn Ameraucana that refused to walk in her diaper. She would sit and mope around all day long -- wouldn't eat, wouldn't drink, just moped for days. After a week we gave up but she was our only hopeless diaper case.
I wound up making my own diapers since velcro straps tangles in Silkie fluff feathers -- so I just safety-pinned the straps together. Yes, it was a bit of getting used to doing this everyday for both the chicken and myself but after a while we both got accustomed to the routine and it worked for us. We got pretty fast at taking off the dirty diaper, discarding the poop, washing just the vent feathers w/baby shampoo, blow drying (this was Mini's favorite part -- she loved fans), and then figuring a good fast way to put on the diaper without 10 Silkie toes pushing the fabric out of the way! At first it took DH and me to figure out what we were doing but after 3 months I was able to one-handed hold onto Mini while with the other hand slipping on her new diaper and pinning the straps together. But be prepared for a struggle in the beginning. It was all worth it to have a free-roaming chicken in the house. I never caged my English Budgerigars or Cockatiel either - they had an open cage door all day with a bird play gym above it and flew in and out as they felt. I just hate caged animals. It takes their spirit away.
As for toe trimming -- look at your other outdoor chickens to see how short their toenails are and gauge your trimming length that way. If you see toes curling funny then you can be pretty sure they need trimming.
BTW, how paralyzed/disabled is your girl? Did she have a leg injury or something like that?