My first question is, do I buy parts from the 99-00 civic si or del sol vtec for the b16a?

Next question is can I use an aftermarket crank pulley from b18a/c or b20b/z on the it, because I got this nice race pulley (kills the a/c) for a LS swap I was doing that I would love to use on the b16a.

Last question, can you use a type r water pump on it? If so, would I benefit from it?

Thanks for your help!