Hi sojuorn welcome to the forum, sorry about the circumstances though
You've gotten some great advice already
Definately a good place to start is getting a copy of all the lab results this makes it easier for you to refer back to them later if you have more questions.
There's lots of specific information here on anaemia http://www.felinecrf.org/anaemia.htm
Some info on kidney stones http://www.cat-health-guide.org/felinekidneystones.html
What brand/flavour food is Kobe currently eating?
What about the daily attitude/activity of your cat? Other than the limp and not eating krunchies, how is Kobe feeling? Affection level the same? Any unusual hiding? Peeing/drinking more than normal? Using the litterbox properly? Does he seem happy/normal or grouchy? Playing/activity level normal? Sleeping more or the same as usual? Pain/discomfort when picked up?