you can probebly get one seperate from the caliper at either Acura or Autozone/Advance Auto. This is Sunnyside Acura, you can look for the part here.
https://www.acuraoemparts.com/delray...ll&ListAll=All

As for the rotors, slotted/drilled aren't really better if you're talking street use. They basically cool better and help transfer gases to the atmosphere easier than blanks. For street use you'll barely notice a difference.